Home / 91,084.85-136,673.73-61,440.56

Finding the Fourth Proportional to 91,084.85, 136,673.73 and 61,440.56

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Solution

The fourth proportional to 91,084.85, 136,673.73 and 61,440.56 is: 92,192.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,084.85 : 136,673.73 = 61,440.56 : x
  2. Step 2: Convert to fraction form
    91,084.85/136,673.73 = 61,440.56/x
  3. Step 3: Cross multiply
    91,084.85x = 136,673.73 × 61,440.56
  4. Step 4: Simplify right side
    91,084.85x = 8,397,309,825.12
  5. Step 5: Solve for x
    x = 8,397,309,825.12/91,084.85
  6. Step 6: Final answer
    x = 92,192.17

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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.