Home / 57,521.40-86,183.55-45,711.60

Finding the Fourth Proportional to 57,521.40, 86,183.55 and 45,711.60

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Solution

The fourth proportional to 57,521.40, 86,183.55 and 45,711.60 is: 68,489.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,521.40 : 86,183.55 = 45,711.60 : x
  2. Step 2: Convert to fraction form
    57,521.40/86,183.55 = 45,711.60/x
  3. Step 3: Cross multiply
    57,521.40x = 86,183.55 × 45,711.60
  4. Step 4: Simplify right side
    57,521.40x = 3,939,587,964.18
  5. Step 5: Solve for x
    x = 3,939,587,964.18/57,521.40
  6. Step 6: Final answer
    x = 68,489.08

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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.