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Finding the Fourth Proportional to 45,358.38, 67,955.94 and 42,689.97

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Solution

The fourth proportional to 45,358.38, 67,955.94 and 42,689.97 is: 63,958.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,358.38 : 67,955.94 = 42,689.97 : x
  2. Step 2: Convert to fraction form
    45,358.38/67,955.94 = 42,689.97/x
  3. Step 3: Cross multiply
    45,358.38x = 67,955.94 × 42,689.97
  4. Step 4: Simplify right side
    45,358.38x = 2,901,037,039.92
  5. Step 5: Solve for x
    x = 2,901,037,039.92/45,358.38
  6. Step 6: Final answer
    x = 63,958.13

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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.