Home / 78,861.30-118,097.55-52,422.90

Finding the Fourth Proportional to 78,861.30, 118,097.55 and 52,422.90

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Solution

The fourth proportional to 78,861.30, 118,097.55 and 52,422.90 is: 78,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,861.30 : 118,097.55 = 52,422.90 : x
  2. Step 2: Convert to fraction form
    78,861.30/118,097.55 = 52,422.90/x
  3. Step 3: Cross multiply
    78,861.30x = 118,097.55 × 52,422.90
  4. Step 4: Simplify right side
    78,861.30x = 6,191,016,053.90
  5. Step 5: Solve for x
    x = 6,191,016,053.90/78,861.30
  6. Step 6: Final answer
    x = 78,505.12

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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.