Home / 74,672.89-103,062.68-42,862.57

Finding the Fourth Proportional to 74,672.89, 103,062.68 and 42,862.57

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Solution

The fourth proportional to 74,672.89, 103,062.68 and 42,862.57 is: 59,158.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,672.89 : 103,062.68 = 42,862.57 : x
  2. Step 2: Convert to fraction form
    74,672.89/103,062.68 = 42,862.57/x
  3. Step 3: Cross multiply
    74,672.89x = 103,062.68 × 42,862.57
  4. Step 4: Simplify right side
    74,672.89x = 4,417,531,024.65
  5. Step 5: Solve for x
    x = 4,417,531,024.65/74,672.89
  6. Step 6: Final answer
    x = 59,158.43

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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.