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Finding the Fourth Proportional to 63,517.48, 87,434.07 and 54,899.71

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Solution

The fourth proportional to 63,517.48, 87,434.07 and 54,899.71 is: 75,571.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,517.48 : 87,434.07 = 54,899.71 : x
  2. Step 2: Convert to fraction form
    63,517.48/87,434.07 = 54,899.71/x
  3. Step 3: Cross multiply
    63,517.48x = 87,434.07 × 54,899.71
  4. Step 4: Simplify right side
    63,517.48x = 4,800,105,263.13
  5. Step 5: Solve for x
    x = 4,800,105,263.13/63,517.48
  6. Step 6: Final answer
    x = 75,571.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.