Home / 100,036.29-138,034.76-57,586.62

Finding the Fourth Proportional to 100,036.29, 138,034.76 and 57,586.62

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Solution

The fourth proportional to 100,036.29, 138,034.76 and 57,586.62 is: 79,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,036.29 : 138,034.76 = 57,586.62 : x
  2. Step 2: Convert to fraction form
    100,036.29/138,034.76 = 57,586.62/x
  3. Step 3: Cross multiply
    100,036.29x = 138,034.76 × 57,586.62
  4. Step 4: Simplify right side
    100,036.29x = 7,948,954,982.98
  5. Step 5: Solve for x
    x = 7,948,954,982.98/100,036.29
  6. Step 6: Final answer
    x = 79,460.71

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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.