Home / 71,331.04-98,435.76-39,498.88

Finding the Fourth Proportional to 71,331.04, 98,435.76 and 39,498.88

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Solution

The fourth proportional to 71,331.04, 98,435.76 and 39,498.88 is: 54,507.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,331.04 : 98,435.76 = 39,498.88 : x
  2. Step 2: Convert to fraction form
    71,331.04/98,435.76 = 39,498.88/x
  3. Step 3: Cross multiply
    71,331.04x = 98,435.76 × 39,498.88
  4. Step 4: Simplify right side
    71,331.04x = 3,888,102,271.95
  5. Step 5: Solve for x
    x = 3,888,102,271.95/71,331.04
  6. Step 6: Final answer
    x = 54,507.86

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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.