Home / 85,302.61-127,949.30-26,138.46

Finding the Fourth Proportional to 85,302.61, 127,949.30 and 26,138.46

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Solution

The fourth proportional to 85,302.61, 127,949.30 and 26,138.46 is: 39,206.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,302.61 : 127,949.30 = 26,138.46 : x
  2. Step 2: Convert to fraction form
    85,302.61/127,949.30 = 26,138.46/x
  3. Step 3: Cross multiply
    85,302.61x = 127,949.30 × 26,138.46
  4. Step 4: Simplify right side
    85,302.61x = 3,344,397,660.08
  5. Step 5: Solve for x
    x = 3,344,397,660.08/85,302.61
  6. Step 6: Final answer
    x = 39,206.28

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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.