Home / 71,188.85-98,236.40-39,355.85

Finding the Fourth Proportional to 71,188.85, 98,236.40 and 39,355.85

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Solution

The fourth proportional to 71,188.85, 98,236.40 and 39,355.85 is: 54,308.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,188.85 : 98,236.40 = 39,355.85 : x
  2. Step 2: Convert to fraction form
    71,188.85/98,236.40 = 39,355.85/x
  3. Step 3: Cross multiply
    71,188.85x = 98,236.40 × 39,355.85
  4. Step 4: Simplify right side
    71,188.85x = 3,866,177,022.94
  5. Step 5: Solve for x
    x = 3,866,177,022.94/71,188.85
  6. Step 6: Final answer
    x = 54,308.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.