Home / 69,085.31-95,340.65-38,871.90

Finding the Fourth Proportional to 69,085.31, 95,340.65 and 38,871.90

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Solution

The fourth proportional to 69,085.31, 95,340.65 and 38,871.90 is: 53,644.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,085.31 : 95,340.65 = 38,871.90 : x
  2. Step 2: Convert to fraction form
    69,085.31/95,340.65 = 38,871.90/x
  3. Step 3: Cross multiply
    69,085.31x = 95,340.65 × 38,871.90
  4. Step 4: Simplify right side
    69,085.31x = 3,706,072,018.38
  5. Step 5: Solve for x
    x = 3,706,072,018.38/69,085.31
  6. Step 6: Final answer
    x = 53,644.87

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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.