Home / 74,200.76-102,381.92-43,972.78

Finding the Fourth Proportional to 74,200.76, 102,381.92 and 43,972.78

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Solution

The fourth proportional to 74,200.76, 102,381.92 and 43,972.78 is: 60,673.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,200.76 : 102,381.92 = 43,972.78 : x
  2. Step 2: Convert to fraction form
    74,200.76/102,381.92 = 43,972.78/x
  3. Step 3: Cross multiply
    74,200.76x = 102,381.92 × 43,972.78
  4. Step 4: Simplify right side
    74,200.76x = 4,502,017,644.14
  5. Step 5: Solve for x
    x = 4,502,017,644.14/74,200.76
  6. Step 6: Final answer
    x = 60,673.47

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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.