Home / 61,146.20-91,719.30-51,304.70

Finding the Fourth Proportional to 61,146.20, 91,719.30 and 51,304.70

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Solution

The fourth proportional to 61,146.20, 91,719.30 and 51,304.70 is: 76,957.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,146.20 : 91,719.30 = 51,304.70 : x
  2. Step 2: Convert to fraction form
    61,146.20/91,719.30 = 51,304.70/x
  3. Step 3: Cross multiply
    61,146.20x = 91,719.30 × 51,304.70
  4. Step 4: Simplify right side
    61,146.20x = 4,705,631,170.71
  5. Step 5: Solve for x
    x = 4,705,631,170.71/61,146.20
  6. Step 6: Final answer
    x = 76,957.05

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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.