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Finding the Fourth Proportional to 62,214.40, 93,321.60 and 20,661.40

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Solution

The fourth proportional to 62,214.40, 93,321.60 and 20,661.40 is: 30,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,214.40 : 93,321.60 = 20,661.40 : x
  2. Step 2: Convert to fraction form
    62,214.40/93,321.60 = 20,661.40/x
  3. Step 3: Cross multiply
    62,214.40x = 93,321.60 × 20,661.40
  4. Step 4: Simplify right side
    62,214.40x = 1,928,154,906.24
  5. Step 5: Solve for x
    x = 1,928,154,906.24/62,214.40
  6. Step 6: Final answer
    x = 30,992.10

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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.