Home / 57,900.08-86,734.92-28,231.28

Finding the Fourth Proportional to 57,900.08, 86,734.92 and 28,231.28

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Solution

The fourth proportional to 57,900.08, 86,734.92 and 28,231.28 is: 42,290.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,900.08 : 86,734.92 = 28,231.28 : x
  2. Step 2: Convert to fraction form
    57,900.08/86,734.92 = 28,231.28/x
  3. Step 3: Cross multiply
    57,900.08x = 86,734.92 × 28,231.28
  4. Step 4: Simplify right side
    57,900.08x = 2,448,637,812.30
  5. Step 5: Solve for x
    x = 2,448,637,812.30/57,900.08
  6. Step 6: Final answer
    x = 42,290.75

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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.