Home / 71,958.15-99,332.96-45,115.95

Finding the Fourth Proportional to 71,958.15, 99,332.96 and 45,115.95

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Solution

The fourth proportional to 71,958.15, 99,332.96 and 45,115.95 is: 62,279.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,958.15 : 99,332.96 = 45,115.95 : x
  2. Step 2: Convert to fraction form
    71,958.15/99,332.96 = 45,115.95/x
  3. Step 3: Cross multiply
    71,958.15x = 99,332.96 × 45,115.95
  4. Step 4: Simplify right side
    71,958.15x = 4,481,500,631.13
  5. Step 5: Solve for x
    x = 4,481,500,631.13/71,958.15
  6. Step 6: Final answer
    x = 62,279.26

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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.