Home / 54,330.10-81,430.35-28,021.30

Finding the Fourth Proportional to 54,330.10, 81,430.35 and 28,021.30

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Solution

The fourth proportional to 54,330.10, 81,430.35 and 28,021.30 is: 41,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,330.10 : 81,430.35 = 28,021.30 : x
  2. Step 2: Convert to fraction form
    54,330.10/81,430.35 = 28,021.30/x
  3. Step 3: Cross multiply
    54,330.10x = 81,430.35 × 28,021.30
  4. Step 4: Simplify right side
    54,330.10x = 2,281,784,266.46
  5. Step 5: Solve for x
    x = 2,281,784,266.46/54,330.10
  6. Step 6: Final answer
    x = 41,998.53

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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.