Home / 71,331.40-98,436.18-39,500.20

Finding the Fourth Proportional to 71,331.40, 98,436.18 and 39,500.20

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Solution

The fourth proportional to 71,331.40, 98,436.18 and 39,500.20 is: 54,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,331.40 : 98,436.18 = 39,500.20 : x
  2. Step 2: Convert to fraction form
    71,331.40/98,436.18 = 39,500.20/x
  3. Step 3: Cross multiply
    71,331.40x = 98,436.18 × 39,500.20
  4. Step 4: Simplify right side
    71,331.40x = 3,888,248,797.24
  5. Step 5: Solve for x
    x = 3,888,248,797.24/71,331.40
  6. Step 6: Final answer
    x = 54,509.64

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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.