Home / 71,190.18-98,233.65-39,359.70

Finding the Fourth Proportional to 71,190.18, 98,233.65 and 39,359.70

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Solution

The fourth proportional to 71,190.18, 98,233.65 and 39,359.70 is: 54,311.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,190.18 : 98,233.65 = 39,359.70 : x
  2. Step 2: Convert to fraction form
    71,190.18/98,233.65 = 39,359.70/x
  3. Step 3: Cross multiply
    71,190.18x = 98,233.65 × 39,359.70
  4. Step 4: Simplify right side
    71,190.18x = 3,866,446,993.91
  5. Step 5: Solve for x
    x = 3,866,446,993.91/71,190.18
  6. Step 6: Final answer
    x = 54,311.52

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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.