Home / 74,898.24-112,291.92-45,308.88

Finding the Fourth Proportional to 74,898.24, 112,291.92 and 45,308.88

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Solution

The fourth proportional to 74,898.24, 112,291.92 and 45,308.88 is: 67,929.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,898.24 : 112,291.92 = 45,308.88 : x
  2. Step 2: Convert to fraction form
    74,898.24/112,291.92 = 45,308.88/x
  3. Step 3: Cross multiply
    74,898.24x = 112,291.92 × 45,308.88
  4. Step 4: Simplify right side
    74,898.24x = 5,087,821,128.25
  5. Step 5: Solve for x
    x = 5,087,821,128.25/74,898.24
  6. Step 6: Final answer
    x = 67,929.78

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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.