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Finding the Fourth Proportional to 60,376.52, 90,529.65 and 40,408.80

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Solution

The fourth proportional to 60,376.52, 90,529.65 and 40,408.80 is: 60,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,376.52 : 90,529.65 = 40,408.80 : x
  2. Step 2: Convert to fraction form
    60,376.52/90,529.65 = 40,408.80/x
  3. Step 3: Cross multiply
    60,376.52x = 90,529.65 × 40,408.80
  4. Step 4: Simplify right side
    60,376.52x = 3,658,194,520.92
  5. Step 5: Solve for x
    x = 3,658,194,520.92/60,376.52
  6. Step 6: Final answer
    x = 60,589.69

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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.