Home / 82,872.08-124,318.96-30,306.32

Finding the Fourth Proportional to 82,872.08, 124,318.96 and 30,306.32

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Solution

The fourth proportional to 82,872.08, 124,318.96 and 30,306.32 is: 45,463.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,872.08 : 124,318.96 = 30,306.32 : x
  2. Step 2: Convert to fraction form
    82,872.08/124,318.96 = 30,306.32/x
  3. Step 3: Cross multiply
    82,872.08x = 124,318.96 × 30,306.32
  4. Step 4: Simplify right side
    82,872.08x = 3,767,650,183.83
  5. Step 5: Solve for x
    x = 3,767,650,183.83/82,872.08
  6. Step 6: Final answer
    x = 45,463.44

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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.