Home / 71,163.64-98,210.91-39,331.85

Finding the Fourth Proportional to 71,163.64, 98,210.91 and 39,331.85

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Solution

The fourth proportional to 71,163.64, 98,210.91 and 39,331.85 is: 54,280.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,163.64 : 98,210.91 = 39,331.85 : x
  2. Step 2: Convert to fraction form
    71,163.64/98,210.91 = 39,331.85/x
  3. Step 3: Cross multiply
    71,163.64x = 98,210.91 × 39,331.85
  4. Step 4: Simplify right side
    71,163.64x = 3,862,816,780.48
  5. Step 5: Solve for x
    x = 3,862,816,780.48/71,163.64
  6. Step 6: Final answer
    x = 54,280.76

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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.