Home / 74,531.34-102,865.19-43,909.38

Finding the Fourth Proportional to 74,531.34, 102,865.19 and 43,909.38

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Solution

The fourth proportional to 74,531.34, 102,865.19 and 43,909.38 is: 60,601.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,531.34 : 102,865.19 = 43,909.38 : x
  2. Step 2: Convert to fraction form
    74,531.34/102,865.19 = 43,909.38/x
  3. Step 3: Cross multiply
    74,531.34x = 102,865.19 × 43,909.38
  4. Step 4: Simplify right side
    74,531.34x = 4,516,746,496.94
  5. Step 5: Solve for x
    x = 4,516,746,496.94/74,531.34
  6. Step 6: Final answer
    x = 60,601.98

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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.