Home / 85,108.59-117,432.02-49,296.47

Finding the Fourth Proportional to 85,108.59, 117,432.02 and 49,296.47

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Solution

The fourth proportional to 85,108.59, 117,432.02 and 49,296.47 is: 68,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,108.59 : 117,432.02 = 49,296.47 : x
  2. Step 2: Convert to fraction form
    85,108.59/117,432.02 = 49,296.47/x
  3. Step 3: Cross multiply
    85,108.59x = 117,432.02 × 49,296.47
  4. Step 4: Simplify right side
    85,108.59x = 5,788,983,217.33
  5. Step 5: Solve for x
    x = 5,788,983,217.33/85,108.59
  6. Step 6: Final answer
    x = 68,018.79

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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.