Home / 57,516.80-86,275.20-55,007.60

Finding the Fourth Proportional to 57,516.80, 86,275.20 and 55,007.60

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Solution

The fourth proportional to 57,516.80, 86,275.20 and 55,007.60 is: 82,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,516.80 : 86,275.20 = 55,007.60 : x
  2. Step 2: Convert to fraction form
    57,516.80/86,275.20 = 55,007.60/x
  3. Step 3: Cross multiply
    57,516.80x = 86,275.20 × 55,007.60
  4. Step 4: Simplify right side
    57,516.80x = 4,745,791,691.52
  5. Step 5: Solve for x
    x = 4,745,791,691.52/57,516.80
  6. Step 6: Final answer
    x = 82,511.40

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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.