Home / 82,877.10-124,315.65-38,489.10

Finding the Fourth Proportional to 82,877.10, 124,315.65 and 38,489.10

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Solution

The fourth proportional to 82,877.10, 124,315.65 and 38,489.10 is: 57,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,877.10 : 124,315.65 = 38,489.10 : x
  2. Step 2: Convert to fraction form
    82,877.10/124,315.65 = 38,489.10/x
  3. Step 3: Cross multiply
    82,877.10x = 124,315.65 × 38,489.10
  4. Step 4: Simplify right side
    82,877.10x = 4,784,797,484.42
  5. Step 5: Solve for x
    x = 4,784,797,484.42/82,877.10
  6. Step 6: Final answer
    x = 57,733.65

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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.