Home / 81,444.96-122,082.18-34,087.20

Finding the Fourth Proportional to 81,444.96, 122,082.18 and 34,087.20

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Solution

The fourth proportional to 81,444.96, 122,082.18 and 34,087.20 is: 51,095.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,444.96 : 122,082.18 = 34,087.20 : x
  2. Step 2: Convert to fraction form
    81,444.96/122,082.18 = 34,087.20/x
  3. Step 3: Cross multiply
    81,444.96x = 122,082.18 × 34,087.20
  4. Step 4: Simplify right side
    81,444.96x = 4,161,439,686.10
  5. Step 5: Solve for x
    x = 4,161,439,686.10/81,444.96
  6. Step 6: Final answer
    x = 51,095.12

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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.