Home / 91,022.11-136,540.08-31,031.95

Finding the Fourth Proportional to 91,022.11, 136,540.08 and 31,031.95

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Solution

The fourth proportional to 91,022.11, 136,540.08 and 31,031.95 is: 46,550.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,022.11 : 136,540.08 = 31,031.95 : x
  2. Step 2: Convert to fraction form
    91,022.11/136,540.08 = 31,031.95/x
  3. Step 3: Cross multiply
    91,022.11x = 136,540.08 × 31,031.95
  4. Step 4: Simplify right side
    91,022.11x = 4,237,104,935.56
  5. Step 5: Solve for x
    x = 4,237,104,935.56/91,022.11
  6. Step 6: Final answer
    x = 46,550.28

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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.