Home / 71,664.12-107,509.11-29,521.20

Finding the Fourth Proportional to 71,664.12, 107,509.11 and 29,521.20

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Solution

The fourth proportional to 71,664.12, 107,509.11 and 29,521.20 is: 44,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,664.12 : 107,509.11 = 29,521.20 : x
  2. Step 2: Convert to fraction form
    71,664.12/107,509.11 = 29,521.20/x
  3. Step 3: Cross multiply
    71,664.12x = 107,509.11 × 29,521.20
  4. Step 4: Simplify right side
    71,664.12x = 3,173,797,938.13
  5. Step 5: Solve for x
    x = 3,173,797,938.13/71,664.12
  6. Step 6: Final answer
    x = 44,287.13

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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.