Home / 90,657.50-136,000.82-38,082.02

Finding the Fourth Proportional to 90,657.50, 136,000.82 and 38,082.02

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Solution

The fourth proportional to 90,657.50, 136,000.82 and 38,082.02 is: 57,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,657.50 : 136,000.82 = 38,082.02 : x
  2. Step 2: Convert to fraction form
    90,657.50/136,000.82 = 38,082.02/x
  3. Step 3: Cross multiply
    90,657.50x = 136,000.82 × 38,082.02
  4. Step 4: Simplify right side
    90,657.50x = 5,179,185,362.46
  5. Step 5: Solve for x
    x = 5,179,185,362.46/90,657.50
  6. Step 6: Final answer
    x = 57,129.15

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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.