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Finding the Fourth Proportional to 60,234.41, 90,279.93 and 45,394.40

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Solution

The fourth proportional to 60,234.41, 90,279.93 and 45,394.40 is: 68,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,234.41 : 90,279.93 = 45,394.40 : x
  2. Step 2: Convert to fraction form
    60,234.41/90,279.93 = 45,394.40/x
  3. Step 3: Cross multiply
    60,234.41x = 90,279.93 × 45,394.40
  4. Step 4: Simplify right side
    60,234.41x = 4,098,203,254.39
  5. Step 5: Solve for x
    x = 4,098,203,254.39/60,234.41
  6. Step 6: Final answer
    x = 68,037.58

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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.