Home / 72,534.20-108,801.09-40,929.89

Finding the Fourth Proportional to 72,534.20, 108,801.09 and 40,929.89

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Solution

The fourth proportional to 72,534.20, 108,801.09 and 40,929.89 is: 61,394.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,534.20 : 108,801.09 = 40,929.89 : x
  2. Step 2: Convert to fraction form
    72,534.20/108,801.09 = 40,929.89/x
  3. Step 3: Cross multiply
    72,534.20x = 108,801.09 × 40,929.89
  4. Step 4: Simplify right side
    72,534.20x = 4,453,216,101.57
  5. Step 5: Solve for x
    x = 4,453,216,101.57/72,534.20
  6. Step 6: Final answer
    x = 61,394.71

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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.