Home / 52,821.20-72,875.11-31,306.59

Finding the Fourth Proportional to 52,821.20, 72,875.11 and 31,306.59

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Solution

The fourth proportional to 52,821.20, 72,875.11 and 31,306.59 is: 43,192.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,821.20 : 72,875.11 = 31,306.59 : x
  2. Step 2: Convert to fraction form
    52,821.20/72,875.11 = 31,306.59/x
  3. Step 3: Cross multiply
    52,821.20x = 72,875.11 × 31,306.59
  4. Step 4: Simplify right side
    52,821.20x = 2,281,471,189.97
  5. Step 5: Solve for x
    x = 2,281,471,189.97/52,821.20
  6. Step 6: Final answer
    x = 43,192.34

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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.