Home / 84,257.82-126,457.20-39,915.18

Finding the Fourth Proportional to 84,257.82, 126,457.20 and 39,915.18

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Solution

The fourth proportional to 84,257.82, 126,457.20 and 39,915.18 is: 59,906.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,257.82 : 126,457.20 = 39,915.18 : x
  2. Step 2: Convert to fraction form
    84,257.82/126,457.20 = 39,915.18/x
  3. Step 3: Cross multiply
    84,257.82x = 126,457.20 × 39,915.18
  4. Step 4: Simplify right side
    84,257.82x = 5,047,561,900.30
  5. Step 5: Solve for x
    x = 5,047,561,900.30/84,257.82
  6. Step 6: Final answer
    x = 59,906.15

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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.