Home / 83,631.53-115,359.02-49,615.94

Finding the Fourth Proportional to 83,631.53, 115,359.02 and 49,615.94

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Solution

The fourth proportional to 83,631.53, 115,359.02 and 49,615.94 is: 68,438.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,631.53 : 115,359.02 = 49,615.94 : x
  2. Step 2: Convert to fraction form
    83,631.53/115,359.02 = 49,615.94/x
  3. Step 3: Cross multiply
    83,631.53x = 115,359.02 × 49,615.94
  4. Step 4: Simplify right side
    83,631.53x = 5,723,646,627.22
  5. Step 5: Solve for x
    x = 5,723,646,627.22/83,631.53
  6. Step 6: Final answer
    x = 68,438.86

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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.