Home / 39,990.20-59,906.10-35,065.40

Finding the Fourth Proportional to 39,990.20, 59,906.10 and 35,065.40

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Solution

The fourth proportional to 39,990.20, 59,906.10 and 35,065.40 is: 52,528.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,990.20 : 59,906.10 = 35,065.40 : x
  2. Step 2: Convert to fraction form
    39,990.20/59,906.10 = 35,065.40/x
  3. Step 3: Cross multiply
    39,990.20x = 59,906.10 × 35,065.40
  4. Step 4: Simplify right side
    39,990.20x = 2,100,631,358.94
  5. Step 5: Solve for x
    x = 2,100,631,358.94/39,990.20
  6. Step 6: Final answer
    x = 52,528.65

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1.5x scale

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.