Home / 74,045.28-102,182.04-40,053.72

Finding the Fourth Proportional to 74,045.28, 102,182.04 and 40,053.72

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Solution

The fourth proportional to 74,045.28, 102,182.04 and 40,053.72 is: 55,273.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,045.28 : 102,182.04 = 40,053.72 : x
  2. Step 2: Convert to fraction form
    74,045.28/102,182.04 = 40,053.72/x
  3. Step 3: Cross multiply
    74,045.28x = 102,182.04 × 40,053.72
  4. Step 4: Simplify right side
    74,045.28x = 4,092,770,819.19
  5. Step 5: Solve for x
    x = 4,092,770,819.19/74,045.28
  6. Step 6: Final answer
    x = 55,273.89

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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.