Home / 85,306.05-127,959.06-45,808.83

Finding the Fourth Proportional to 85,306.05, 127,959.06 and 45,808.83

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Solution

The fourth proportional to 85,306.05, 127,959.06 and 45,808.83 is: 68,713.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,306.05 : 127,959.06 = 45,808.83 : x
  2. Step 2: Convert to fraction form
    85,306.05/127,959.06 = 45,808.83/x
  3. Step 3: Cross multiply
    85,306.05x = 127,959.06 × 45,808.83
  4. Step 4: Simplify right side
    85,306.05x = 5,861,654,826.50
  5. Step 5: Solve for x
    x = 5,861,654,826.50/85,306.05
  6. Step 6: Final answer
    x = 68,713.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.