Home / 67,728.20-101,592.30-57,705.80

Finding the Fourth Proportional to 67,728.20, 101,592.30 and 57,705.80

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Solution

The fourth proportional to 67,728.20, 101,592.30 and 57,705.80 is: 86,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,728.20 : 101,592.30 = 57,705.80 : x
  2. Step 2: Convert to fraction form
    67,728.20/101,592.30 = 57,705.80/x
  3. Step 3: Cross multiply
    67,728.20x = 101,592.30 × 57,705.80
  4. Step 4: Simplify right side
    67,728.20x = 5,862,464,945.34
  5. Step 5: Solve for x
    x = 5,862,464,945.34/67,728.20
  6. Step 6: Final answer
    x = 86,558.70

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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.