Home / 74,882.38-112,323.36-30,498.70

Finding the Fourth Proportional to 74,882.38, 112,323.36 and 30,498.70

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Solution

The fourth proportional to 74,882.38, 112,323.36 and 30,498.70 is: 45,747.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,882.38 : 112,323.36 = 30,498.70 : x
  2. Step 2: Convert to fraction form
    74,882.38/112,323.36 = 30,498.70/x
  3. Step 3: Cross multiply
    74,882.38x = 112,323.36 × 30,498.70
  4. Step 4: Simplify right side
    74,882.38x = 3,425,716,459.63
  5. Step 5: Solve for x
    x = 3,425,716,459.63/74,882.38
  6. Step 6: Final answer
    x = 45,747.96

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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.