Home / 90,770.22-136,158.98-31,611.87

Finding the Fourth Proportional to 90,770.22, 136,158.98 and 31,611.87

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Solution

The fourth proportional to 90,770.22, 136,158.98 and 31,611.87 is: 47,419.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,770.22 : 136,158.98 = 31,611.87 : x
  2. Step 2: Convert to fraction form
    90,770.22/136,158.98 = 31,611.87/x
  3. Step 3: Cross multiply
    90,770.22x = 136,158.98 × 31,611.87
  4. Step 4: Simplify right side
    90,770.22x = 4,304,239,817.03
  5. Step 5: Solve for x
    x = 4,304,239,817.03/90,770.22
  6. Step 6: Final answer
    x = 47,419.07

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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.