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Finding the Fourth Proportional to 60,311.20, 90,466.80 and 50,634.40

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Solution

The fourth proportional to 60,311.20, 90,466.80 and 50,634.40 is: 75,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,311.20 : 90,466.80 = 50,634.40 : x
  2. Step 2: Convert to fraction form
    60,311.20/90,466.80 = 50,634.40/x
  3. Step 3: Cross multiply
    60,311.20x = 90,466.80 × 50,634.40
  4. Step 4: Simplify right side
    60,311.20x = 4,580,732,137.92
  5. Step 5: Solve for x
    x = 4,580,732,137.92/60,311.20
  6. Step 6: Final answer
    x = 75,951.60

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1.5x scale

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.