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Finding the Fourth Proportional to 62,213.40, 93,320.10 and 20,660.40

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Solution

The fourth proportional to 62,213.40, 93,320.10 and 20,660.40 is: 30,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,213.40 : 93,320.10 = 20,660.40 : x
  2. Step 2: Convert to fraction form
    62,213.40/93,320.10 = 20,660.40/x
  3. Step 3: Cross multiply
    62,213.40x = 93,320.10 × 20,660.40
  4. Step 4: Simplify right side
    62,213.40x = 1,928,030,594.04
  5. Step 5: Solve for x
    x = 1,928,030,594.04/62,213.40
  6. Step 6: Final answer
    x = 30,990.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.