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Finding the Fourth Proportional to 78,514.88, 117,754.62 and 22,353.76

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Solution

The fourth proportional to 78,514.88, 117,754.62 and 22,353.76 is: 33,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,514.88 : 117,754.62 = 22,353.76 : x
  2. Step 2: Convert to fraction form
    78,514.88/117,754.62 = 22,353.76/x
  3. Step 3: Cross multiply
    78,514.88x = 117,754.62 × 22,353.76
  4. Step 4: Simplify right side
    78,514.88x = 2,632,258,514.37
  5. Step 5: Solve for x
    x = 2,632,258,514.37/78,514.88
  6. Step 6: Final answer
    x = 33,525.60

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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.