Home / 91,010.78-136,577.65-31,846.96

Finding the Fourth Proportional to 91,010.78, 136,577.65 and 31,846.96

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Solution

The fourth proportional to 91,010.78, 136,577.65 and 31,846.96 is: 47,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,010.78 : 136,577.65 = 31,846.96 : x
  2. Step 2: Convert to fraction form
    91,010.78/136,577.65 = 31,846.96/x
  3. Step 3: Cross multiply
    91,010.78x = 136,577.65 × 31,846.96
  4. Step 4: Simplify right side
    91,010.78x = 4,349,582,956.44
  5. Step 5: Solve for x
    x = 4,349,582,956.44/91,010.78
  6. Step 6: Final answer
    x = 47,791.95

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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.