Home / 82,728.20-124,092.30-51,235.40

Finding the Fourth Proportional to 82,728.20, 124,092.30 and 51,235.40

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Solution

The fourth proportional to 82,728.20, 124,092.30 and 51,235.40 is: 76,853.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,728.20 : 124,092.30 = 51,235.40 : x
  2. Step 2: Convert to fraction form
    82,728.20/124,092.30 = 51,235.40/x
  3. Step 3: Cross multiply
    82,728.20x = 124,092.30 × 51,235.40
  4. Step 4: Simplify right side
    82,728.20x = 6,357,918,627.42
  5. Step 5: Solve for x
    x = 6,357,918,627.42/82,728.20
  6. Step 6: Final answer
    x = 76,853.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.