Home / 74,972.71-103,463.03-42,706.86

Finding the Fourth Proportional to 74,972.71, 103,463.03 and 42,706.86

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Solution

The fourth proportional to 74,972.71, 103,463.03 and 42,706.86 is: 58,935.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,972.71 : 103,463.03 = 42,706.86 : x
  2. Step 2: Convert to fraction form
    74,972.71/103,463.03 = 42,706.86/x
  3. Step 3: Cross multiply
    74,972.71x = 103,463.03 × 42,706.86
  4. Step 4: Simplify right side
    74,972.71x = 4,418,580,923.85
  5. Step 5: Solve for x
    x = 4,418,580,923.85/74,972.71
  6. Step 6: Final answer
    x = 58,935.86

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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.