Home / 84,388.96-126,517.75-42,247.36

Finding the Fourth Proportional to 84,388.96, 126,517.75 and 42,247.36

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Solution

The fourth proportional to 84,388.96, 126,517.75 and 42,247.36 is: 63,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,388.96 : 126,517.75 = 42,247.36 : x
  2. Step 2: Convert to fraction form
    84,388.96/126,517.75 = 42,247.36/x
  3. Step 3: Cross multiply
    84,388.96x = 126,517.75 × 42,247.36
  4. Step 4: Simplify right side
    84,388.96x = 5,345,040,271.51
  5. Step 5: Solve for x
    x = 5,345,040,271.51/84,388.96
  6. Step 6: Final answer
    x = 63,338.15

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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.