Home / 90,969.40-136,502.70-41,057.20

Finding the Fourth Proportional to 90,969.40, 136,502.70 and 41,057.20

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Solution

The fourth proportional to 90,969.40, 136,502.70 and 41,057.20 is: 61,607.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,969.40 : 136,502.70 = 41,057.20 : x
  2. Step 2: Convert to fraction form
    90,969.40/136,502.70 = 41,057.20/x
  3. Step 3: Cross multiply
    90,969.40x = 136,502.70 × 41,057.20
  4. Step 4: Simplify right side
    90,969.40x = 5,604,418,654.44
  5. Step 5: Solve for x
    x = 5,604,418,654.44/90,969.40
  6. Step 6: Final answer
    x = 61,607.73

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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.