Home / 78,274.08-117,404.87-22,111.92

Finding the Fourth Proportional to 78,274.08, 117,404.87 and 22,111.92

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Solution

The fourth proportional to 78,274.08, 117,404.87 and 22,111.92 is: 33,166.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,274.08 : 117,404.87 = 22,111.92 : x
  2. Step 2: Convert to fraction form
    78,274.08/117,404.87 = 22,111.92/x
  3. Step 3: Cross multiply
    78,274.08x = 117,404.87 × 22,111.92
  4. Step 4: Simplify right side
    78,274.08x = 2,596,046,982.49
  5. Step 5: Solve for x
    x = 2,596,046,982.49/78,274.08
  6. Step 6: Final answer
    x = 33,166.11

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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.