Home / 75,718.38-113,431.98-42,337.20

Finding the Fourth Proportional to 75,718.38, 113,431.98 and 42,337.20

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Solution

The fourth proportional to 75,718.38, 113,431.98 and 42,337.20 is: 63,424.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,718.38 : 113,431.98 = 42,337.20 : x
  2. Step 2: Convert to fraction form
    75,718.38/113,431.98 = 42,337.20/x
  3. Step 3: Cross multiply
    75,718.38x = 113,431.98 × 42,337.20
  4. Step 4: Simplify right side
    75,718.38x = 4,802,392,423.66
  5. Step 5: Solve for x
    x = 4,802,392,423.66/75,718.38
  6. Step 6: Final answer
    x = 63,424.39

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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.