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Finding the Fourth Proportional to 60,077.92, 82,909.80 and 39,899.92

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Solution

The fourth proportional to 60,077.92, 82,909.80 and 39,899.92 is: 55,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,077.92 : 82,909.80 = 39,899.92 : x
  2. Step 2: Convert to fraction form
    60,077.92/82,909.80 = 39,899.92/x
  3. Step 3: Cross multiply
    60,077.92x = 82,909.80 × 39,899.92
  4. Step 4: Simplify right side
    60,077.92x = 3,308,094,387.22
  5. Step 5: Solve for x
    x = 3,308,094,387.22/60,077.92
  6. Step 6: Final answer
    x = 55,063.40

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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.