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Finding the Fourth Proportional to 73,415.57, 110,121.53 and 20,825.10

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Solution

The fourth proportional to 73,415.57, 110,121.53 and 20,825.10 is: 31,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,415.57 : 110,121.53 = 20,825.10 : x
  2. Step 2: Convert to fraction form
    73,415.57/110,121.53 = 20,825.10/x
  3. Step 3: Cross multiply
    73,415.57x = 110,121.53 × 20,825.10
  4. Step 4: Simplify right side
    73,415.57x = 2,293,291,770.28
  5. Step 5: Solve for x
    x = 2,293,291,770.28/73,415.57
  6. Step 6: Final answer
    x = 31,237.13

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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.