Home / 85,170.96-117,535.92-49,381.76

Finding the Fourth Proportional to 85,170.96, 117,535.92 and 49,381.76

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Solution

The fourth proportional to 85,170.96, 117,535.92 and 49,381.76 is: 68,146.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,170.96 : 117,535.92 = 49,381.76 : x
  2. Step 2: Convert to fraction form
    85,170.96/117,535.92 = 49,381.76/x
  3. Step 3: Cross multiply
    85,170.96x = 117,535.92 × 49,381.76
  4. Step 4: Simplify right side
    85,170.96x = 5,804,130,592.82
  5. Step 5: Solve for x
    x = 5,804,130,592.82/85,170.96
  6. Step 6: Final answer
    x = 68,146.83

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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.