Home / 74,572.90-102,910.64-42,741.83

Finding the Fourth Proportional to 74,572.90, 102,910.64 and 42,741.83

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Solution

The fourth proportional to 74,572.90, 102,910.64 and 42,741.83 is: 58,983.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,572.90 : 102,910.64 = 42,741.83 : x
  2. Step 2: Convert to fraction form
    74,572.90/102,910.64 = 42,741.83/x
  3. Step 3: Cross multiply
    74,572.90x = 102,910.64 × 42,741.83
  4. Step 4: Simplify right side
    74,572.90x = 4,398,589,123.64
  5. Step 5: Solve for x
    x = 4,398,589,123.64/74,572.90
  6. Step 6: Final answer
    x = 58,983.75

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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.