Home / 62,542.12-93,822.78-20,979.40

Finding the Fourth Proportional to 62,542.12, 93,822.78 and 20,979.40

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Solution

The fourth proportional to 62,542.12, 93,822.78 and 20,979.40 is: 31,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,542.12 : 93,822.78 = 20,979.40 : x
  2. Step 2: Convert to fraction form
    62,542.12/93,822.78 = 20,979.40/x
  3. Step 3: Cross multiply
    62,542.12x = 93,822.78 × 20,979.40
  4. Step 4: Simplify right side
    62,542.12x = 1,968,345,630.73
  5. Step 5: Solve for x
    x = 1,968,345,630.73/62,542.12
  6. Step 6: Final answer
    x = 31,472.32

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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.