Home / 90,712.20-136,097.00-40,796.66

Finding the Fourth Proportional to 90,712.20, 136,097.00 and 40,796.66

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Solution

The fourth proportional to 90,712.20, 136,097.00 and 40,796.66 is: 61,207.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,712.20 : 136,097.00 = 40,796.66 : x
  2. Step 2: Convert to fraction form
    90,712.20/136,097.00 = 40,796.66/x
  3. Step 3: Cross multiply
    90,712.20x = 136,097.00 × 40,796.66
  4. Step 4: Simplify right side
    90,712.20x = 5,552,302,559.72
  5. Step 5: Solve for x
    x = 5,552,302,559.72/90,712.20
  6. Step 6: Final answer
    x = 61,207.89

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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.