Home / 74,876.10-112,257.96-45,287.88

Finding the Fourth Proportional to 74,876.10, 112,257.96 and 45,287.88

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Solution

The fourth proportional to 74,876.10, 112,257.96 and 45,287.88 is: 67,897.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,876.10 : 112,257.96 = 45,287.88 : x
  2. Step 2: Convert to fraction form
    74,876.10/112,257.96 = 45,287.88/x
  3. Step 3: Cross multiply
    74,876.10x = 112,257.96 × 45,287.88
  4. Step 4: Simplify right side
    74,876.10x = 5,083,925,021.52
  5. Step 5: Solve for x
    x = 5,083,925,021.52/74,876.10
  6. Step 6: Final answer
    x = 67,897.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.