Home / 54,815.92-75,646.20-30,942.88

Finding the Fourth Proportional to 54,815.92, 75,646.20 and 30,942.88

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Solution

The fourth proportional to 54,815.92, 75,646.20 and 30,942.88 is: 42,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,815.92 : 75,646.20 = 30,942.88 : x
  2. Step 2: Convert to fraction form
    54,815.92/75,646.20 = 30,942.88/x
  3. Step 3: Cross multiply
    54,815.92x = 75,646.20 × 30,942.88
  4. Step 4: Simplify right side
    54,815.92x = 2,340,711,289.06
  5. Step 5: Solve for x
    x = 2,340,711,289.06/54,815.92
  6. Step 6: Final answer
    x = 42,701.30

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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.