Home / 91,213.18-136,841.03-31,242.30

Finding the Fourth Proportional to 91,213.18, 136,841.03 and 31,242.30

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Solution

The fourth proportional to 91,213.18, 136,841.03 and 31,242.30 is: 46,870.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,213.18 : 136,841.03 = 31,242.30 : x
  2. Step 2: Convert to fraction form
    91,213.18/136,841.03 = 31,242.30/x
  3. Step 3: Cross multiply
    91,213.18x = 136,841.03 × 31,242.30
  4. Step 4: Simplify right side
    91,213.18x = 4,275,227,671.15
  5. Step 5: Solve for x
    x = 4,275,227,671.15/91,213.18
  6. Step 6: Final answer
    x = 46,870.73

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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.