Home / 82,709.66-124,115.52-38,328.14

Finding the Fourth Proportional to 82,709.66, 124,115.52 and 38,328.14

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Solution

The fourth proportional to 82,709.66, 124,115.52 and 38,328.14 is: 57,515.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,709.66 : 124,115.52 = 38,328.14 : x
  2. Step 2: Convert to fraction form
    82,709.66/124,115.52 = 38,328.14/x
  3. Step 3: Cross multiply
    82,709.66x = 124,115.52 × 38,328.14
  4. Step 4: Simplify right side
    82,709.66x = 4,757,117,480.75
  5. Step 5: Solve for x
    x = 4,757,117,480.75/82,709.66
  6. Step 6: Final answer
    x = 57,515.86

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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.