Home / 56,908.80-85,363.20-55,268.55

Finding the Fourth Proportional to 56,908.80, 85,363.20 and 55,268.55

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Solution

The fourth proportional to 56,908.80, 85,363.20 and 55,268.55 is: 82,902.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,908.80 : 85,363.20 = 55,268.55 : x
  2. Step 2: Convert to fraction form
    56,908.80/85,363.20 = 55,268.55/x
  3. Step 3: Cross multiply
    56,908.80x = 85,363.20 × 55,268.55
  4. Step 4: Simplify right side
    56,908.80x = 4,717,900,287.36
  5. Step 5: Solve for x
    x = 4,717,900,287.36/56,908.80
  6. Step 6: Final answer
    x = 82,902.83

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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.