Home / 71,182.20-98,232.12-38,917.80

Finding the Fourth Proportional to 71,182.20, 98,232.12 and 38,917.80

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Solution

The fourth proportional to 71,182.20, 98,232.12 and 38,917.80 is: 53,706.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,182.20 : 98,232.12 = 38,917.80 : x
  2. Step 2: Convert to fraction form
    71,182.20/98,232.12 = 38,917.80/x
  3. Step 3: Cross multiply
    71,182.20x = 98,232.12 × 38,917.80
  4. Step 4: Simplify right side
    71,182.20x = 3,822,977,999.74
  5. Step 5: Solve for x
    x = 3,822,977,999.74/71,182.20
  6. Step 6: Final answer
    x = 53,706.94

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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.