Home / 57,643.20-86,594.40-40,147.20

Finding the Fourth Proportional to 57,643.20, 86,594.40 and 40,147.20

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Solution

The fourth proportional to 57,643.20, 86,594.40 and 40,147.20 is: 60,311.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,643.20 : 86,594.40 = 40,147.20 : x
  2. Step 2: Convert to fraction form
    57,643.20/86,594.40 = 40,147.20/x
  3. Step 3: Cross multiply
    57,643.20x = 86,594.40 × 40,147.20
  4. Step 4: Simplify right side
    57,643.20x = 3,476,522,695.68
  5. Step 5: Solve for x
    x = 3,476,522,695.68/57,643.20
  6. Step 6: Final answer
    x = 60,311.06

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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.