Home / 85,139.16-117,481.74-48,838.71

Finding the Fourth Proportional to 85,139.16, 117,481.74 and 48,838.71

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Solution

The fourth proportional to 85,139.16, 117,481.74 and 48,838.71 is: 67,391.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,139.16 : 117,481.74 = 48,838.71 : x
  2. Step 2: Convert to fraction form
    85,139.16/117,481.74 = 48,838.71/x
  3. Step 3: Cross multiply
    85,139.16x = 117,481.74 × 48,838.71
  4. Step 4: Simplify right side
    85,139.16x = 5,737,656,630.16
  5. Step 5: Solve for x
    x = 5,737,656,630.16/85,139.16
  6. Step 6: Final answer
    x = 67,391.51

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1.5x scale

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.