Home / 75,423.16-112,999.74-50,387.38

Finding the Fourth Proportional to 75,423.16, 112,999.74 and 50,387.38

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Solution

The fourth proportional to 75,423.16, 112,999.74 and 50,387.38 is: 75,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,423.16 : 112,999.74 = 50,387.38 : x
  2. Step 2: Convert to fraction form
    75,423.16/112,999.74 = 50,387.38/x
  3. Step 3: Cross multiply
    75,423.16x = 112,999.74 × 50,387.38
  4. Step 4: Simplify right side
    75,423.16x = 5,693,760,839.28
  5. Step 5: Solve for x
    x = 5,693,760,839.28/75,423.16
  6. Step 6: Final answer
    x = 75,490.88

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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.