Home / 57,154.16-85,729.61-19,713.53

Finding the Fourth Proportional to 57,154.16, 85,729.61 and 19,713.53

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Solution

The fourth proportional to 57,154.16, 85,729.61 and 19,713.53 is: 29,569.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,154.16 : 85,729.61 = 19,713.53 : x
  2. Step 2: Convert to fraction form
    57,154.16/85,729.61 = 19,713.53/x
  3. Step 3: Cross multiply
    57,154.16x = 85,729.61 × 19,713.53
  4. Step 4: Simplify right side
    57,154.16x = 1,690,032,859.26
  5. Step 5: Solve for x
    x = 1,690,032,859.26/57,154.16
  6. Step 6: Final answer
    x = 29,569.73

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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.