Home / 91,156.16-136,733.43-31,977.97

Finding the Fourth Proportional to 91,156.16, 136,733.43 and 31,977.97

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Solution

The fourth proportional to 91,156.16, 136,733.43 and 31,977.97 is: 47,966.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,156.16 : 136,733.43 = 31,977.97 : x
  2. Step 2: Convert to fraction form
    91,156.16/136,733.43 = 31,977.97/x
  3. Step 3: Cross multiply
    91,156.16x = 136,733.43 × 31,977.97
  4. Step 4: Simplify right side
    91,156.16x = 4,372,456,838.87
  5. Step 5: Solve for x
    x = 4,372,456,838.87/91,156.16
  6. Step 6: Final answer
    x = 47,966.66

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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.