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Finding the Fourth Proportional to 85,471.12, 117,926.13 and 49,170.67

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Solution

The fourth proportional to 85,471.12, 117,926.13 and 49,170.67 is: 67,841.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,471.12 : 117,926.13 = 49,170.67 : x
  2. Step 2: Convert to fraction form
    85,471.12/117,926.13 = 49,170.67/x
  3. Step 3: Cross multiply
    85,471.12x = 117,926.13 × 49,170.67
  4. Step 4: Simplify right side
    85,471.12x = 5,798,506,822.61
  5. Step 5: Solve for x
    x = 5,798,506,822.61/85,471.12
  6. Step 6: Final answer
    x = 67,841.71

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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.