Home / 57,709.92-86,560.56-20,270.32

Finding the Fourth Proportional to 57,709.92, 86,560.56 and 20,270.32

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Solution

The fourth proportional to 57,709.92, 86,560.56 and 20,270.32 is: 30,403.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,709.92 : 86,560.56 = 20,270.32 : x
  2. Step 2: Convert to fraction form
    57,709.92/86,560.56 = 20,270.32/x
  3. Step 3: Cross multiply
    57,709.92x = 86,560.56 × 20,270.32
  4. Step 4: Simplify right side
    57,709.92x = 1,754,610,250.58
  5. Step 5: Solve for x
    x = 1,754,610,250.58/57,709.92
  6. Step 6: Final answer
    x = 30,403.96

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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.