Home / 71,487.24-107,231.63-21,567.76

Finding the Fourth Proportional to 71,487.24, 107,231.63 and 21,567.76

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Solution

The fourth proportional to 71,487.24, 107,231.63 and 21,567.76 is: 32,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,487.24 : 107,231.63 = 21,567.76 : x
  2. Step 2: Convert to fraction form
    71,487.24/107,231.63 = 21,567.76/x
  3. Step 3: Cross multiply
    71,487.24x = 107,231.63 × 21,567.76
  4. Step 4: Simplify right side
    71,487.24x = 2,312,746,060.25
  5. Step 5: Solve for x
    x = 2,312,746,060.25/71,487.24
  6. Step 6: Final answer
    x = 32,351.87

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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.