Home / 207,081.12-310,622.12-57,321.84

Finding the Fourth Proportional to 207,081.12, 310,622.12 and 57,321.84

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Solution

The fourth proportional to 207,081.12, 310,622.12 and 57,321.84 is: 85,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,081.12 : 310,622.12 = 57,321.84 : x
  2. Step 2: Convert to fraction form
    207,081.12/310,622.12 = 57,321.84/x
  3. Step 3: Cross multiply
    207,081.12x = 310,622.12 × 57,321.84
  4. Step 4: Simplify right side
    207,081.12x = 17,805,432,878.72
  5. Step 5: Solve for x
    x = 17,805,432,878.72/207,081.12
  6. Step 6: Final answer
    x = 85,982.89

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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.