Home / 85,062.75-117,378.93-49,255.17

Finding the Fourth Proportional to 85,062.75, 117,378.93 and 49,255.17

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Solution

The fourth proportional to 85,062.75, 117,378.93 and 49,255.17 is: 67,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,062.75 : 117,378.93 = 49,255.17 : x
  2. Step 2: Convert to fraction form
    85,062.75/117,378.93 = 49,255.17/x
  3. Step 3: Cross multiply
    85,062.75x = 117,378.93 × 49,255.17
  4. Step 4: Simplify right side
    85,062.75x = 5,781,519,151.57
  5. Step 5: Solve for x
    x = 5,781,519,151.57/85,062.75
  6. Step 6: Final answer
    x = 67,967.70

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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.