Home / 82,457.20-123,685.80-52,932.70

Finding the Fourth Proportional to 82,457.20, 123,685.80 and 52,932.70

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Solution

The fourth proportional to 82,457.20, 123,685.80 and 52,932.70 is: 79,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,457.20 : 123,685.80 = 52,932.70 : x
  2. Step 2: Convert to fraction form
    82,457.20/123,685.80 = 52,932.70/x
  3. Step 3: Cross multiply
    82,457.20x = 123,685.80 × 52,932.70
  4. Step 4: Simplify right side
    82,457.20x = 6,547,023,345.66
  5. Step 5: Solve for x
    x = 6,547,023,345.66/82,457.20
  6. Step 6: Final answer
    x = 79,399.05

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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.