Home / 71,434.15-107,143.70-29,318.68

Finding the Fourth Proportional to 71,434.15, 107,143.70 and 29,318.68

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Solution

The fourth proportional to 71,434.15, 107,143.70 and 29,318.68 is: 43,974.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,434.15 : 107,143.70 = 29,318.68 : x
  2. Step 2: Convert to fraction form
    71,434.15/107,143.70 = 29,318.68/x
  3. Step 3: Cross multiply
    71,434.15x = 107,143.70 × 29,318.68
  4. Step 4: Simplify right side
    71,434.15x = 3,141,311,854.32
  5. Step 5: Solve for x
    x = 3,141,311,854.32/71,434.15
  6. Step 6: Final answer
    x = 43,974.93

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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.