Home / 39,979.20-59,882.40-35,601.60

Finding the Fourth Proportional to 39,979.20, 59,882.40 and 35,601.60

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Solution

The fourth proportional to 39,979.20, 59,882.40 and 35,601.60 is: 53,325.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,979.20 : 59,882.40 = 35,601.60 : x
  2. Step 2: Convert to fraction form
    39,979.20/59,882.40 = 35,601.60/x
  3. Step 3: Cross multiply
    39,979.20x = 59,882.40 × 35,601.60
  4. Step 4: Simplify right side
    39,979.20x = 2,131,909,251.84
  5. Step 5: Solve for x
    x = 2,131,909,251.84/39,979.20
  6. Step 6: Final answer
    x = 53,325.46

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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.