Home / 70,968.20-106,331.78-42,829.11

Finding the Fourth Proportional to 70,968.20, 106,331.78 and 42,829.11

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Solution

The fourth proportional to 70,968.20, 106,331.78 and 42,829.11 is: 64,170.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,968.20 : 106,331.78 = 42,829.11 : x
  2. Step 2: Convert to fraction form
    70,968.20/106,331.78 = 42,829.11/x
  3. Step 3: Cross multiply
    70,968.20x = 106,331.78 × 42,829.11
  4. Step 4: Simplify right side
    70,968.20x = 4,554,095,287.97
  5. Step 5: Solve for x
    x = 4,554,095,287.97/70,968.20
  6. Step 6: Final answer
    x = 64,170.93

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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.