Home / 39,766.60-59,688.30-20,067.40

Finding the Fourth Proportional to 39,766.60, 59,688.30 and 20,067.40

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Solution

The fourth proportional to 39,766.60, 59,688.30 and 20,067.40 is: 30,120.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,766.60 : 59,688.30 = 20,067.40 : x
  2. Step 2: Convert to fraction form
    39,766.60/59,688.30 = 20,067.40/x
  3. Step 3: Cross multiply
    39,766.60x = 59,688.30 × 20,067.40
  4. Step 4: Simplify right side
    39,766.60x = 1,197,788,991.42
  5. Step 5: Solve for x
    x = 1,197,788,991.42/39,766.60
  6. Step 6: Final answer
    x = 30,120.48

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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.