Home / 82,362.30-123,543.45-76,832.70

Finding the Fourth Proportional to 82,362.30, 123,543.45 and 76,832.70

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Solution

The fourth proportional to 82,362.30, 123,543.45 and 76,832.70 is: 115,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,362.30 : 123,543.45 = 76,832.70 : x
  2. Step 2: Convert to fraction form
    82,362.30/123,543.45 = 76,832.70/x
  3. Step 3: Cross multiply
    82,362.30x = 123,543.45 × 76,832.70
  4. Step 4: Simplify right side
    82,362.30x = 9,492,176,830.82
  5. Step 5: Solve for x
    x = 9,492,176,830.82/82,362.30
  6. Step 6: Final answer
    x = 115,249.05

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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.