Home / 90,234.44-135,304.93-48,103.20

Finding the Fourth Proportional to 90,234.44, 135,304.93 and 48,103.20

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Solution

The fourth proportional to 90,234.44, 135,304.93 and 48,103.20 is: 72,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,234.44 : 135,304.93 = 48,103.20 : x
  2. Step 2: Convert to fraction form
    90,234.44/135,304.93 = 48,103.20/x
  3. Step 3: Cross multiply
    90,234.44x = 135,304.93 × 48,103.20
  4. Step 4: Simplify right side
    90,234.44x = 6,508,600,463.81
  5. Step 5: Solve for x
    x = 6,508,600,463.81/90,234.44
  6. Step 6: Final answer
    x = 72,129.90

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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.