Home / 45,166.20-67,749.30-20,218.20

Finding the Fourth Proportional to 45,166.20, 67,749.30 and 20,218.20

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Solution

The fourth proportional to 45,166.20, 67,749.30 and 20,218.20 is: 30,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,166.20 : 67,749.30 = 20,218.20 : x
  2. Step 2: Convert to fraction form
    45,166.20/67,749.30 = 20,218.20/x
  3. Step 3: Cross multiply
    45,166.20x = 67,749.30 × 20,218.20
  4. Step 4: Simplify right side
    45,166.20x = 1,369,768,897.26
  5. Step 5: Solve for x
    x = 1,369,768,897.26/45,166.20
  6. Step 6: Final answer
    x = 30,327.30

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Double scale
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Similar ratio
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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.