Home / 91,013.42-136,581.64-31,849.61

Finding the Fourth Proportional to 91,013.42, 136,581.64 and 31,849.61

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Solution

The fourth proportional to 91,013.42, 136,581.64 and 31,849.61 is: 47,795.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,013.42 : 136,581.64 = 31,849.61 : x
  2. Step 2: Convert to fraction form
    91,013.42/136,581.64 = 31,849.61/x
  3. Step 3: Cross multiply
    91,013.42x = 136,581.64 × 31,849.61
  4. Step 4: Simplify right side
    91,013.42x = 4,350,071,204.63
  5. Step 5: Solve for x
    x = 4,350,071,204.63/91,013.42
  6. Step 6: Final answer
    x = 47,795.93

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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.