Home / 48,417.12-66,872-38,760.16

Finding the Fourth Proportional to 48,417.12, 66,872 and 38,760.16

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Solution

The fourth proportional to 48,417.12, 66,872 and 38,760.16 is: 53,534.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,417.12 : 66,872 = 38,760.16 : x
  2. Step 2: Convert to fraction form
    48,417.12/66,872 = 38,760.16/x
  3. Step 3: Cross multiply
    48,417.12x = 66,872 × 38,760.16
  4. Step 4: Simplify right side
    48,417.12x = 2,591,969,419.52
  5. Step 5: Solve for x
    x = 2,591,969,419.52/48,417.12
  6. Step 6: Final answer
    x = 53,534.15

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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.