Home / 91,155.24-136,731.71-31,183.11

Finding the Fourth Proportional to 91,155.24, 136,731.71 and 31,183.11

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Solution

The fourth proportional to 91,155.24, 136,731.71 and 31,183.11 is: 46,774.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,155.24 : 136,731.71 = 31,183.11 : x
  2. Step 2: Convert to fraction form
    91,155.24/136,731.71 = 31,183.11/x
  3. Step 3: Cross multiply
    91,155.24x = 136,731.71 × 31,183.11
  4. Step 4: Simplify right side
    91,155.24x = 4,263,720,031.38
  5. Step 5: Solve for x
    x = 4,263,720,031.38/91,155.24
  6. Step 6: Final answer
    x = 46,774.27

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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.