Home / 91,265.80-136,896.64-41,309.72

Finding the Fourth Proportional to 91,265.80, 136,896.64 and 41,309.72

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Solution

The fourth proportional to 91,265.80, 136,896.64 and 41,309.72 is: 61,963.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,265.80 : 136,896.64 = 41,309.72 : x
  2. Step 2: Convert to fraction form
    91,265.80/136,896.64 = 41,309.72/x
  3. Step 3: Cross multiply
    91,265.80x = 136,896.64 × 41,309.72
  4. Step 4: Simplify right side
    91,265.80x = 5,655,161,867.34
  5. Step 5: Solve for x
    x = 5,655,161,867.34/91,265.80
  6. Step 6: Final answer
    x = 61,963.65

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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.