Home / 90,522.62-135,766.34-45,531.98

Finding the Fourth Proportional to 90,522.62, 135,766.34 and 45,531.98

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Solution

The fourth proportional to 90,522.62, 135,766.34 and 45,531.98 is: 68,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,522.62 : 135,766.34 = 45,531.98 : x
  2. Step 2: Convert to fraction form
    90,522.62/135,766.34 = 45,531.98/x
  3. Step 3: Cross multiply
    90,522.62x = 135,766.34 × 45,531.98
  4. Step 4: Simplify right side
    90,522.62x = 6,181,710,277.55
  5. Step 5: Solve for x
    x = 6,181,710,277.55/90,522.62
  6. Step 6: Final answer
    x = 68,289.12

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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.