Home / 82,471.68-123,719.64-29,868.84

Finding the Fourth Proportional to 82,471.68, 123,719.64 and 29,868.84

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Solution

The fourth proportional to 82,471.68, 123,719.64 and 29,868.84 is: 44,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,471.68 : 123,719.64 = 29,868.84 : x
  2. Step 2: Convert to fraction form
    82,471.68/123,719.64 = 29,868.84/x
  3. Step 3: Cross multiply
    82,471.68x = 123,719.64 × 29,868.84
  4. Step 4: Simplify right side
    82,471.68x = 3,695,362,132.02
  5. Step 5: Solve for x
    x = 3,695,362,132.02/82,471.68
  6. Step 6: Final answer
    x = 44,807.65

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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.