Home / 84,637.38-126,968.38-45,172.96

Finding the Fourth Proportional to 84,637.38, 126,968.38 and 45,172.96

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Solution

The fourth proportional to 84,637.38, 126,968.38 and 45,172.96 is: 67,766.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,637.38 : 126,968.38 = 45,172.96 : x
  2. Step 2: Convert to fraction form
    84,637.38/126,968.38 = 45,172.96/x
  3. Step 3: Cross multiply
    84,637.38x = 126,968.38 × 45,172.96
  4. Step 4: Simplify right side
    84,637.38x = 5,735,537,551.00
  5. Step 5: Solve for x
    x = 5,735,537,551.00/84,637.38
  6. Step 6: Final answer
    x = 67,766.01

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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.