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Finding the Fourth Proportional to 45,548, 68,357.28 and 31,605.92

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Solution

The fourth proportional to 45,548, 68,357.28 and 31,605.92 is: 47,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,548 : 68,357.28 = 31,605.92 : x
  2. Step 2: Convert to fraction form
    45,548/68,357.28 = 31,605.92/x
  3. Step 3: Cross multiply
    45,548x = 68,357.28 × 31,605.92
  4. Step 4: Simplify right side
    45,548x = 2,160,494,723.10
  5. Step 5: Solve for x
    x = 2,160,494,723.10/45,548
  6. Step 6: Final answer
    x = 47,433.36

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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.