Home / 82,857.70-124,306.80-38,475.10

Finding the Fourth Proportional to 82,857.70, 124,306.80 and 38,475.10

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Solution

The fourth proportional to 82,857.70, 124,306.80 and 38,475.10 is: 57,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,857.70 : 124,306.80 = 38,475.10 : x
  2. Step 2: Convert to fraction form
    82,857.70/124,306.80 = 38,475.10/x
  3. Step 3: Cross multiply
    82,857.70x = 124,306.80 × 38,475.10
  4. Step 4: Simplify right side
    82,857.70x = 4,782,716,560.68
  5. Step 5: Solve for x
    x = 4,782,716,560.68/82,857.70
  6. Step 6: Final answer
    x = 57,722.05

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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.