Home / 86,057.28-118,753.20-48,330.72

Finding the Fourth Proportional to 86,057.28, 118,753.20 and 48,330.72

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Solution

The fourth proportional to 86,057.28, 118,753.20 and 48,330.72 is: 66,693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,057.28 : 118,753.20 = 48,330.72 : x
  2. Step 2: Convert to fraction form
    86,057.28/118,753.20 = 48,330.72/x
  3. Step 3: Cross multiply
    86,057.28x = 118,753.20 × 48,330.72
  4. Step 4: Simplify right side
    86,057.28x = 5,739,427,658.30
  5. Step 5: Solve for x
    x = 5,739,427,658.30/86,057.28
  6. Step 6: Final answer
    x = 66,693.11

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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.