Home / 84,327.40-126,491.10-31,748.68

Finding the Fourth Proportional to 84,327.40, 126,491.10 and 31,748.68

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Solution

The fourth proportional to 84,327.40, 126,491.10 and 31,748.68 is: 47,623.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,327.40 : 126,491.10 = 31,748.68 : x
  2. Step 2: Convert to fraction form
    84,327.40/126,491.10 = 31,748.68/x
  3. Step 3: Cross multiply
    84,327.40x = 126,491.10 × 31,748.68
  4. Step 4: Simplify right side
    84,327.40x = 4,015,925,456.75
  5. Step 5: Solve for x
    x = 4,015,925,456.75/84,327.40
  6. Step 6: Final answer
    x = 47,623.02

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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.