Home / 63,542.28-87,686.98-39,336.80

Finding the Fourth Proportional to 63,542.28, 87,686.98 and 39,336.80

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Solution

The fourth proportional to 63,542.28, 87,686.98 and 39,336.80 is: 54,283.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,542.28 : 87,686.98 = 39,336.80 : x
  2. Step 2: Convert to fraction form
    63,542.28/87,686.98 = 39,336.80/x
  3. Step 3: Cross multiply
    63,542.28x = 87,686.98 × 39,336.80
  4. Step 4: Simplify right side
    63,542.28x = 3,449,325,194.86
  5. Step 5: Solve for x
    x = 3,449,325,194.86/63,542.28
  6. Step 6: Final answer
    x = 54,283.94

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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.