Home / 66,146.30-91,283.54-35,931.61

Finding the Fourth Proportional to 66,146.30, 91,283.54 and 35,931.61

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Solution

The fourth proportional to 66,146.30, 91,283.54 and 35,931.61 is: 49,586.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,146.30 : 91,283.54 = 35,931.61 : x
  2. Step 2: Convert to fraction form
    66,146.30/91,283.54 = 35,931.61/x
  3. Step 3: Cross multiply
    66,146.30x = 91,283.54 × 35,931.61
  4. Step 4: Simplify right side
    66,146.30x = 3,279,964,558.70
  5. Step 5: Solve for x
    x = 3,279,964,558.70/66,146.30
  6. Step 6: Final answer
    x = 49,586.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.