Home / 67,728.38-101,365.90-66,832.25

Finding the Fourth Proportional to 67,728.38, 101,365.90 and 66,832.25

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Solution

The fourth proportional to 67,728.38, 101,365.90 and 66,832.25 is: 100,024.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,728.38 : 101,365.90 = 66,832.25 : x
  2. Step 2: Convert to fraction form
    67,728.38/101,365.90 = 66,832.25/x
  3. Step 3: Cross multiply
    67,728.38x = 101,365.90 × 66,832.25
  4. Step 4: Simplify right side
    67,728.38x = 6,774,510,496.36
  5. Step 5: Solve for x
    x = 6,774,510,496.36/67,728.38
  6. Step 6: Final answer
    x = 100,024.70

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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.