Home / 91,021.07-136,424.35-41,042.66

Finding the Fourth Proportional to 91,021.07, 136,424.35 and 41,042.66

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Solution

The fourth proportional to 91,021.07, 136,424.35 and 41,042.66 is: 61,515.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,021.07 : 136,424.35 = 41,042.66 : x
  2. Step 2: Convert to fraction form
    91,021.07/136,424.35 = 41,042.66/x
  3. Step 3: Cross multiply
    91,021.07x = 136,424.35 × 41,042.66
  4. Step 4: Simplify right side
    91,021.07x = 5,599,217,428.04
  5. Step 5: Solve for x
    x = 5,599,217,428.04/91,021.07
  6. Step 6: Final answer
    x = 61,515.62

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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.