Home / 85,546.36-117,998.40-54,870.92

Finding the Fourth Proportional to 85,546.36, 117,998.40 and 54,870.92

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Solution

The fourth proportional to 85,546.36, 117,998.40 and 54,870.92 is: 75,686.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,546.36 : 117,998.40 = 54,870.92 : x
  2. Step 2: Convert to fraction form
    85,546.36/117,998.40 = 54,870.92/x
  3. Step 3: Cross multiply
    85,546.36x = 117,998.40 × 54,870.92
  4. Step 4: Simplify right side
    85,546.36x = 6,474,680,824.80
  5. Step 5: Solve for x
    x = 6,474,680,824.80/85,546.36
  6. Step 6: Final answer
    x = 75,686.22

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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.