Home / 57,729.38-86,594.70-20,290.52

Finding the Fourth Proportional to 57,729.38, 86,594.70 and 20,290.52

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Solution

The fourth proportional to 57,729.38, 86,594.70 and 20,290.52 is: 30,436.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,729.38 : 86,594.70 = 20,290.52 : x
  2. Step 2: Convert to fraction form
    57,729.38/86,594.70 = 20,290.52/x
  3. Step 3: Cross multiply
    57,729.38x = 86,594.70 × 20,290.52
  4. Step 4: Simplify right side
    57,729.38x = 1,757,051,492.24
  5. Step 5: Solve for x
    x = 1,757,051,492.24/57,729.38
  6. Step 6: Final answer
    x = 30,436.00

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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.