Home / 90,660.62-136,005.51-38,085.14

Finding the Fourth Proportional to 90,660.62, 136,005.51 and 38,085.14

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Solution

The fourth proportional to 90,660.62, 136,005.51 and 38,085.14 is: 57,133.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,660.62 : 136,005.51 = 38,085.14 : x
  2. Step 2: Convert to fraction form
    90,660.62/136,005.51 = 38,085.14/x
  3. Step 3: Cross multiply
    90,660.62x = 136,005.51 × 38,085.14
  4. Step 4: Simplify right side
    90,660.62x = 5,179,788,889.12
  5. Step 5: Solve for x
    x = 5,179,788,889.12/90,660.62
  6. Step 6: Final answer
    x = 57,133.83

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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.