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Finding the Fourth Proportional to 54,432, 81,650.80 and 14,988.24

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Solution

The fourth proportional to 54,432, 81,650.80 and 14,988.24 is: 22,483.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,432 : 81,650.80 = 14,988.24 : x
  2. Step 2: Convert to fraction form
    54,432/81,650.80 = 14,988.24/x
  3. Step 3: Cross multiply
    54,432x = 81,650.80 × 14,988.24
  4. Step 4: Simplify right side
    54,432x = 1,223,801,786.59
  5. Step 5: Solve for x
    x = 1,223,801,786.59/54,432
  6. Step 6: Final answer
    x = 22,483.13

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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.