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Finding the Fourth Proportional to 53,291.60, 79,937.40 and 18,232.40

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Solution

The fourth proportional to 53,291.60, 79,937.40 and 18,232.40 is: 27,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,291.60 : 79,937.40 = 18,232.40 : x
  2. Step 2: Convert to fraction form
    53,291.60/79,937.40 = 18,232.40/x
  3. Step 3: Cross multiply
    53,291.60x = 79,937.40 × 18,232.40
  4. Step 4: Simplify right side
    53,291.60x = 1,457,450,651.76
  5. Step 5: Solve for x
    x = 1,457,450,651.76/53,291.60
  6. Step 6: Final answer
    x = 27,348.60

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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.