Home / 75,987.43-113,918.55-57,231.46

Finding the Fourth Proportional to 75,987.43, 113,918.55 and 57,231.46

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Solution

The fourth proportional to 75,987.43, 113,918.55 and 57,231.46 is: 85,800.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,987.43 : 113,918.55 = 57,231.46 : x
  2. Step 2: Convert to fraction form
    75,987.43/113,918.55 = 57,231.46/x
  3. Step 3: Cross multiply
    75,987.43x = 113,918.55 × 57,231.46
  4. Step 4: Simplify right side
    75,987.43x = 6,519,724,937.58
  5. Step 5: Solve for x
    x = 6,519,724,937.58/75,987.43
  6. Step 6: Final answer
    x = 85,800.05

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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.