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Finding the Fourth Proportional to 40,655, 60,919.52 and 28,199.24

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Solution

The fourth proportional to 40,655, 60,919.52 and 28,199.24 is: 42,255.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,655 : 60,919.52 = 28,199.24 : x
  2. Step 2: Convert to fraction form
    40,655/60,919.52 = 28,199.24/x
  3. Step 3: Cross multiply
    40,655x = 60,919.52 × 28,199.24
  4. Step 4: Simplify right side
    40,655x = 1,717,884,165.16
  5. Step 5: Solve for x
    x = 1,717,884,165.16/40,655
  6. Step 6: Final answer
    x = 42,255.18

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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.