Home / 54,221.70-81,330.16-14,778.81

Finding the Fourth Proportional to 54,221.70, 81,330.16 and 14,778.81

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Solution

The fourth proportional to 54,221.70, 81,330.16 and 14,778.81 is: 22,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,221.70 : 81,330.16 = 14,778.81 : x
  2. Step 2: Convert to fraction form
    54,221.70/81,330.16 = 14,778.81/x
  3. Step 3: Cross multiply
    54,221.70x = 81,330.16 × 14,778.81
  4. Step 4: Simplify right side
    54,221.70x = 1,201,962,908.02
  5. Step 5: Solve for x
    x = 1,201,962,908.02/54,221.70
  6. Step 6: Final answer
    x = 22,167.56

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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.