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Finding the Fourth Proportional to 73,700.70, 110,550.60 and 21,110.28

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Solution

The fourth proportional to 73,700.70, 110,550.60 and 21,110.28 is: 31,665.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,700.70 : 110,550.60 = 21,110.28 : x
  2. Step 2: Convert to fraction form
    73,700.70/110,550.60 = 21,110.28/x
  3. Step 3: Cross multiply
    73,700.70x = 110,550.60 × 21,110.28
  4. Step 4: Simplify right side
    73,700.70x = 2,333,754,120.17
  5. Step 5: Solve for x
    x = 2,333,754,120.17/73,700.70
  6. Step 6: Final answer
    x = 31,665.29

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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.