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Finding the Fourth Proportional to 85,282.56, 127,920.96 and 22,950.72

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Solution

The fourth proportional to 85,282.56, 127,920.96 and 22,950.72 is: 34,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,282.56 : 127,920.96 = 22,950.72 : x
  2. Step 2: Convert to fraction form
    85,282.56/127,920.96 = 22,950.72/x
  3. Step 3: Cross multiply
    85,282.56x = 127,920.96 × 22,950.72
  4. Step 4: Simplify right side
    85,282.56x = 2,935,878,135.09
  5. Step 5: Solve for x
    x = 2,935,878,135.09/85,282.56
  6. Step 6: Final answer
    x = 34,425.30

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1.5x scale

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.