Home / 74,764.05-103,171.49-42,502.89

Finding the Fourth Proportional to 74,764.05, 103,171.49 and 42,502.89

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Solution

The fourth proportional to 74,764.05, 103,171.49 and 42,502.89 is: 58,652.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,764.05 : 103,171.49 = 42,502.89 : x
  2. Step 2: Convert to fraction form
    74,764.05/103,171.49 = 42,502.89/x
  3. Step 3: Cross multiply
    74,764.05x = 103,171.49 × 42,502.89
  4. Step 4: Simplify right side
    74,764.05x = 4,385,086,278.09
  5. Step 5: Solve for x
    x = 4,385,086,278.09/74,764.05
  6. Step 6: Final answer
    x = 58,652.34

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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.