Home / 54,035.10-81,100.65-31,820.70

Finding the Fourth Proportional to 54,035.10, 81,100.65 and 31,820.70

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Solution

The fourth proportional to 54,035.10, 81,100.65 and 31,820.70 is: 47,759.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,035.10 : 81,100.65 = 31,820.70 : x
  2. Step 2: Convert to fraction form
    54,035.10/81,100.65 = 31,820.70/x
  3. Step 3: Cross multiply
    54,035.10x = 81,100.65 × 31,820.70
  4. Step 4: Simplify right side
    54,035.10x = 2,580,679,453.46
  5. Step 5: Solve for x
    x = 2,580,679,453.46/54,035.10
  6. Step 6: Final answer
    x = 47,759.32

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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.