Home / 62,213.60-93,320.40-20,660.60

Finding the Fourth Proportional to 62,213.60, 93,320.40 and 20,660.60

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Solution

The fourth proportional to 62,213.60, 93,320.40 and 20,660.60 is: 30,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,213.60 : 93,320.40 = 20,660.60 : x
  2. Step 2: Convert to fraction form
    62,213.60/93,320.40 = 20,660.60/x
  3. Step 3: Cross multiply
    62,213.60x = 93,320.40 × 20,660.60
  4. Step 4: Simplify right side
    62,213.60x = 1,928,055,456.24
  5. Step 5: Solve for x
    x = 1,928,055,456.24/62,213.60
  6. Step 6: Final answer
    x = 30,990.90

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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.