Home / 57,642.05-86,471.16-20,193.55

Finding the Fourth Proportional to 57,642.05, 86,471.16 and 20,193.55

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Solution

The fourth proportional to 57,642.05, 86,471.16 and 20,193.55 is: 30,293.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,642.05 : 86,471.16 = 20,193.55 : x
  2. Step 2: Convert to fraction form
    57,642.05/86,471.16 = 20,193.55/x
  3. Step 3: Cross multiply
    57,642.05x = 86,471.16 × 20,193.55
  4. Step 4: Simplify right side
    57,642.05x = 1,746,159,693.02
  5. Step 5: Solve for x
    x = 1,746,159,693.02/57,642.05
  6. Step 6: Final answer
    x = 30,293.16

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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.