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Finding the Fourth Proportional to 73,760.90, 110,657.80 and 21,166.28

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Solution

The fourth proportional to 73,760.90, 110,657.80 and 21,166.28 is: 31,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,760.90 : 110,657.80 = 21,166.28 : x
  2. Step 2: Convert to fraction form
    73,760.90/110,657.80 = 21,166.28/x
  3. Step 3: Cross multiply
    73,760.90x = 110,657.80 × 21,166.28
  4. Step 4: Simplify right side
    73,760.90x = 2,342,214,255.63
  5. Step 5: Solve for x
    x = 2,342,214,255.63/73,760.90
  6. Step 6: Final answer
    x = 31,754.15

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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.