Home / 85,211.17-117,591.86-48,902.85

Finding the Fourth Proportional to 85,211.17, 117,591.86 and 48,902.85

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Solution

The fourth proportional to 85,211.17, 117,591.86 and 48,902.85 is: 67,486.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,211.17 : 117,591.86 = 48,902.85 : x
  2. Step 2: Convert to fraction form
    85,211.17/117,591.86 = 48,902.85/x
  3. Step 3: Cross multiply
    85,211.17x = 117,591.86 × 48,902.85
  4. Step 4: Simplify right side
    85,211.17x = 5,750,577,213.06
  5. Step 5: Solve for x
    x = 5,750,577,213.06/85,211.17
  6. Step 6: Final answer
    x = 67,486.19

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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.