Home / 57,277.80-85,979.57-45,507.24

Finding the Fourth Proportional to 57,277.80, 85,979.57 and 45,507.24

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Solution

The fourth proportional to 57,277.80, 85,979.57 and 45,507.24 is: 68,310.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,277.80 : 85,979.57 = 45,507.24 : x
  2. Step 2: Convert to fraction form
    57,277.80/85,979.57 = 45,507.24/x
  3. Step 3: Cross multiply
    57,277.80x = 85,979.57 × 45,507.24
  4. Step 4: Simplify right side
    57,277.80x = 3,912,692,699.55
  5. Step 5: Solve for x
    x = 3,912,692,699.55/57,277.80
  6. Step 6: Final answer
    x = 68,310.81

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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.