Home / 71,419.66-98,560.13-39,157.32

Finding the Fourth Proportional to 71,419.66, 98,560.13 and 39,157.32

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Solution

The fourth proportional to 71,419.66, 98,560.13 and 39,157.32 is: 54,037.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,419.66 : 98,560.13 = 39,157.32 : x
  2. Step 2: Convert to fraction form
    71,419.66/98,560.13 = 39,157.32/x
  3. Step 3: Cross multiply
    71,419.66x = 98,560.13 × 39,157.32
  4. Step 4: Simplify right side
    71,419.66x = 3,859,350,549.65
  5. Step 5: Solve for x
    x = 3,859,350,549.65/71,419.66
  6. Step 6: Final answer
    x = 54,037.65

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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.