Home / 85,020.71-117,329.57-48,721.44

Finding the Fourth Proportional to 85,020.71, 117,329.57 and 48,721.44

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Solution

The fourth proportional to 85,020.71, 117,329.57 and 48,721.44 is: 67,236.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,020.71 : 117,329.57 = 48,721.44 : x
  2. Step 2: Convert to fraction form
    85,020.71/117,329.57 = 48,721.44/x
  3. Step 3: Cross multiply
    85,020.71x = 117,329.57 × 48,721.44
  4. Step 4: Simplify right side
    85,020.71x = 5,716,465,726.78
  5. Step 5: Solve for x
    x = 5,716,465,726.78/85,020.71
  6. Step 6: Final answer
    x = 67,236.15

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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.