Home / 71,040.08-98,031.12-39,208.16

Finding the Fourth Proportional to 71,040.08, 98,031.12 and 39,208.16

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Solution

The fourth proportional to 71,040.08, 98,031.12 and 39,208.16 is: 54,104.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,040.08 : 98,031.12 = 39,208.16 : x
  2. Step 2: Convert to fraction form
    71,040.08/98,031.12 = 39,208.16/x
  3. Step 3: Cross multiply
    71,040.08x = 98,031.12 × 39,208.16
  4. Step 4: Simplify right side
    71,040.08x = 3,843,619,837.94
  5. Step 5: Solve for x
    x = 3,843,619,837.94/71,040.08
  6. Step 6: Final answer
    x = 54,104.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.