Home / 82,543.32-123,752.88-40,410.36

Finding the Fourth Proportional to 82,543.32, 123,752.88 and 40,410.36

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Solution

The fourth proportional to 82,543.32, 123,752.88 and 40,410.36 is: 60,585.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,543.32 : 123,752.88 = 40,410.36 : x
  2. Step 2: Convert to fraction form
    82,543.32/123,752.88 = 40,410.36/x
  3. Step 3: Cross multiply
    82,543.32x = 123,752.88 × 40,410.36
  4. Step 4: Simplify right side
    82,543.32x = 5,000,898,431.84
  5. Step 5: Solve for x
    x = 5,000,898,431.84/82,543.32
  6. Step 6: Final answer
    x = 60,585.14

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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.