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Finding the Fourth Proportional to 57,309.80, 85,964.70 and 44,868.20

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Solution

The fourth proportional to 57,309.80, 85,964.70 and 44,868.20 is: 67,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,309.80 : 85,964.70 = 44,868.20 : x
  2. Step 2: Convert to fraction form
    57,309.80/85,964.70 = 44,868.20/x
  3. Step 3: Cross multiply
    57,309.80x = 85,964.70 × 44,868.20
  4. Step 4: Simplify right side
    57,309.80x = 3,857,081,352.54
  5. Step 5: Solve for x
    x = 3,857,081,352.54/57,309.80
  6. Step 6: Final answer
    x = 67,302.30

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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.