Home / 78,221.07-117,335.24-22,817.07

Finding the Fourth Proportional to 78,221.07, 117,335.24 and 22,817.07

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Solution

The fourth proportional to 78,221.07, 117,335.24 and 22,817.07 is: 34,226.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,221.07 : 117,335.24 = 22,817.07 : x
  2. Step 2: Convert to fraction form
    78,221.07/117,335.24 = 22,817.07/x
  3. Step 3: Cross multiply
    78,221.07x = 117,335.24 × 22,817.07
  4. Step 4: Simplify right side
    78,221.07x = 2,677,246,270.46
  5. Step 5: Solve for x
    x = 2,677,246,270.46/78,221.07
  6. Step 6: Final answer
    x = 34,226.66

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1.5x scale

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.