Home / 69,129.06-95,407.38-38,920.38

Finding the Fourth Proportional to 69,129.06, 95,407.38 and 38,920.38

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Solution

The fourth proportional to 69,129.06, 95,407.38 and 38,920.38 is: 53,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,129.06 : 95,407.38 = 38,920.38 : x
  2. Step 2: Convert to fraction form
    69,129.06/95,407.38 = 38,920.38/x
  3. Step 3: Cross multiply
    69,129.06x = 95,407.38 × 38,920.38
  4. Step 4: Simplify right side
    69,129.06x = 3,713,291,484.40
  5. Step 5: Solve for x
    x = 3,713,291,484.40/69,129.06
  6. Step 6: Final answer
    x = 53,715.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.