Home / 54,225.72-81,330.48-18,692.64

Finding the Fourth Proportional to 54,225.72, 81,330.48 and 18,692.64

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Solution

The fourth proportional to 54,225.72, 81,330.48 and 18,692.64 is: 28,036.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,225.72 : 81,330.48 = 18,692.64 : x
  2. Step 2: Convert to fraction form
    54,225.72/81,330.48 = 18,692.64/x
  3. Step 3: Cross multiply
    54,225.72x = 81,330.48 × 18,692.64
  4. Step 4: Simplify right side
    54,225.72x = 1,520,281,383.67
  5. Step 5: Solve for x
    x = 1,520,281,383.67/54,225.72
  6. Step 6: Final answer
    x = 28,036.17

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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.