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Finding the Fourth Proportional to 53,287.94, 79,931.93 and 27,000.20

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Solution

The fourth proportional to 53,287.94, 79,931.93 and 27,000.20 is: 40,500.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,287.94 : 79,931.93 = 27,000.20 : x
  2. Step 2: Convert to fraction form
    53,287.94/79,931.93 = 27,000.20/x
  3. Step 3: Cross multiply
    53,287.94x = 79,931.93 × 27,000.20
  4. Step 4: Simplify right side
    53,287.94x = 2,158,178,161.21
  5. Step 5: Solve for x
    x = 2,158,178,161.21/53,287.94
  6. Step 6: Final answer
    x = 40,500.31

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.