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Finding the Fourth Proportional to 73,619.42, 110,415.14 and 20,298.21

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Solution

The fourth proportional to 73,619.42, 110,415.14 and 20,298.21 is: 30,443.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,619.42 : 110,415.14 = 20,298.21 : x
  2. Step 2: Convert to fraction form
    73,619.42/110,415.14 = 20,298.21/x
  3. Step 3: Cross multiply
    73,619.42x = 110,415.14 × 20,298.21
  4. Step 4: Simplify right side
    73,619.42x = 2,241,229,937.64
  5. Step 5: Solve for x
    x = 2,241,229,937.64/73,619.42
  6. Step 6: Final answer
    x = 30,443.46

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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.