Home / 54,808.16-75,635.10-30,934.76

Finding the Fourth Proportional to 54,808.16, 75,635.10 and 30,934.76

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Solution

The fourth proportional to 54,808.16, 75,635.10 and 30,934.76 is: 42,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,808.16 : 75,635.10 = 30,934.76 : x
  2. Step 2: Convert to fraction form
    54,808.16/75,635.10 = 30,934.76/x
  3. Step 3: Cross multiply
    54,808.16x = 75,635.10 × 30,934.76
  4. Step 4: Simplify right side
    54,808.16x = 2,339,753,666.08
  5. Step 5: Solve for x
    x = 2,339,753,666.08/54,808.16
  6. Step 6: Final answer
    x = 42,689.88

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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.