Home / 85,116.66-127,632.09-49,589.70

Finding the Fourth Proportional to 85,116.66, 127,632.09 and 49,589.70

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Solution

The fourth proportional to 85,116.66, 127,632.09 and 49,589.70 is: 74,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,116.66 : 127,632.09 = 49,589.70 : x
  2. Step 2: Convert to fraction form
    85,116.66/127,632.09 = 49,589.70/x
  3. Step 3: Cross multiply
    85,116.66x = 127,632.09 × 49,589.70
  4. Step 4: Simplify right side
    85,116.66x = 6,329,237,053.47
  5. Step 5: Solve for x
    x = 6,329,237,053.47/85,116.66
  6. Step 6: Final answer
    x = 74,359.56

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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.