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Finding the Fourth Proportional to 45,036, 67,553.46 and 42,295.77

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Solution

The fourth proportional to 45,036, 67,553.46 and 42,295.77 is: 63,443.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,036 : 67,553.46 = 42,295.77 : x
  2. Step 2: Convert to fraction form
    45,036/67,553.46 = 42,295.77/x
  3. Step 3: Cross multiply
    45,036x = 67,553.46 × 42,295.77
  4. Step 4: Simplify right side
    45,036x = 2,857,225,606.86
  5. Step 5: Solve for x
    x = 2,857,225,606.86/45,036
  6. Step 6: Final answer
    x = 63,443.15

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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.