Home / 71,713.86-98,957.55-39,877.62

Finding the Fourth Proportional to 71,713.86, 98,957.55 and 39,877.62

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Solution

The fourth proportional to 71,713.86, 98,957.55 and 39,877.62 is: 55,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,713.86 : 98,957.55 = 39,877.62 : x
  2. Step 2: Convert to fraction form
    71,713.86/98,957.55 = 39,877.62/x
  3. Step 3: Cross multiply
    71,713.86x = 98,957.55 × 39,877.62
  4. Step 4: Simplify right side
    71,713.86x = 3,946,191,575.03
  5. Step 5: Solve for x
    x = 3,946,191,575.03/71,713.86
  6. Step 6: Final answer
    x = 55,026.90

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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.