Home / 56,218.60-84,327.90-21,166.12

Finding the Fourth Proportional to 56,218.60, 84,327.90 and 21,166.12

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Solution

The fourth proportional to 56,218.60, 84,327.90 and 21,166.12 is: 31,749.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,218.60 : 84,327.90 = 21,166.12 : x
  2. Step 2: Convert to fraction form
    56,218.60/84,327.90 = 21,166.12/x
  3. Step 3: Cross multiply
    56,218.60x = 84,327.90 × 21,166.12
  4. Step 4: Simplify right side
    56,218.60x = 1,784,894,450.75
  5. Step 5: Solve for x
    x = 1,784,894,450.75/56,218.60
  6. Step 6: Final answer
    x = 31,749.18

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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.