Home / 75,578.48-113,387.20-31,212.08

Finding the Fourth Proportional to 75,578.48, 113,387.20 and 31,212.08

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Solution

The fourth proportional to 75,578.48, 113,387.20 and 31,212.08 is: 46,826.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,578.48 : 113,387.20 = 31,212.08 : x
  2. Step 2: Convert to fraction form
    75,578.48/113,387.20 = 31,212.08/x
  3. Step 3: Cross multiply
    75,578.48x = 113,387.20 × 31,212.08
  4. Step 4: Simplify right side
    75,578.48x = 3,539,050,357.38
  5. Step 5: Solve for x
    x = 3,539,050,357.38/75,578.48
  6. Step 6: Final answer
    x = 46,826.16

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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.