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Finding the Fourth Proportional to 57,377.70, 79,159.05 and 42,306.03

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Solution

The fourth proportional to 57,377.70, 79,159.05 and 42,306.03 is: 58,365.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,377.70 : 79,159.05 = 42,306.03 : x
  2. Step 2: Convert to fraction form
    57,377.70/79,159.05 = 42,306.03/x
  3. Step 3: Cross multiply
    57,377.70x = 79,159.05 × 42,306.03
  4. Step 4: Simplify right side
    57,377.70x = 3,348,905,144.07
  5. Step 5: Solve for x
    x = 3,348,905,144.07/57,377.70
  6. Step 6: Final answer
    x = 58,365.97

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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.