Home / 71,432.40-107,105.08-31,982.16

Finding the Fourth Proportional to 71,432.40, 107,105.08 and 31,982.16

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Solution

The fourth proportional to 71,432.40, 107,105.08 and 31,982.16 is: 47,953.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,432.40 : 107,105.08 = 31,982.16 : x
  2. Step 2: Convert to fraction form
    71,432.40/107,105.08 = 31,982.16/x
  3. Step 3: Cross multiply
    71,432.40x = 107,105.08 × 31,982.16
  4. Step 4: Simplify right side
    71,432.40x = 3,425,451,805.37
  5. Step 5: Solve for x
    x = 3,425,451,805.37/71,432.40
  6. Step 6: Final answer
    x = 47,953.75

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1.5x scale

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.