Home / 74,864.40-103,346.64-49,385.92

Finding the Fourth Proportional to 74,864.40, 103,346.64 and 49,385.92

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Solution

The fourth proportional to 74,864.40, 103,346.64 and 49,385.92 is: 68,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,864.40 : 103,346.64 = 49,385.92 : x
  2. Step 2: Convert to fraction form
    74,864.40/103,346.64 = 49,385.92/x
  3. Step 3: Cross multiply
    74,864.40x = 103,346.64 × 49,385.92
  4. Step 4: Simplify right side
    74,864.40x = 5,103,868,895.31
  5. Step 5: Solve for x
    x = 5,103,868,895.31/74,864.40
  6. Step 6: Final answer
    x = 68,174.85

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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.