Home / 84,034.36-126,071.12-27,870.36

Finding the Fourth Proportional to 84,034.36, 126,071.12 and 27,870.36

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Solution

The fourth proportional to 84,034.36, 126,071.12 and 27,870.36 is: 41,812.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,034.36 : 126,071.12 = 27,870.36 : x
  2. Step 2: Convert to fraction form
    84,034.36/126,071.12 = 27,870.36/x
  3. Step 3: Cross multiply
    84,034.36x = 126,071.12 × 27,870.36
  4. Step 4: Simplify right side
    84,034.36x = 3,513,647,500.00
  5. Step 5: Solve for x
    x = 3,513,647,500.00/84,034.36
  6. Step 6: Final answer
    x = 41,812.03

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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.