Home / 71,825.92-107,688.82-31,823.16

Finding the Fourth Proportional to 71,825.92, 107,688.82 and 31,823.16

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Solution

The fourth proportional to 71,825.92, 107,688.82 and 31,823.16 is: 47,712.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,825.92 : 107,688.82 = 31,823.16 : x
  2. Step 2: Convert to fraction form
    71,825.92/107,688.82 = 31,823.16/x
  3. Step 3: Cross multiply
    71,825.92x = 107,688.82 × 31,823.16
  4. Step 4: Simplify right side
    71,825.92x = 3,426,998,549.07
  5. Step 5: Solve for x
    x = 3,426,998,549.07/71,825.92
  6. Step 6: Final answer
    x = 47,712.56

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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.