Home / 78,060.14-107,723.77-42,250.91

Finding the Fourth Proportional to 78,060.14, 107,723.77 and 42,250.91

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Solution

The fourth proportional to 78,060.14, 107,723.77 and 42,250.91 is: 58,306.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,060.14 : 107,723.77 = 42,250.91 : x
  2. Step 2: Convert to fraction form
    78,060.14/107,723.77 = 42,250.91/x
  3. Step 3: Cross multiply
    78,060.14x = 107,723.77 × 42,250.91
  4. Step 4: Simplify right side
    78,060.14x = 4,551,427,311.13
  5. Step 5: Solve for x
    x = 4,551,427,311.13/78,060.14
  6. Step 6: Final answer
    x = 58,306.68

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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.