Home / 75,463.88-113,152.38-31,121.32

Finding the Fourth Proportional to 75,463.88, 113,152.38 and 31,121.32

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Solution

The fourth proportional to 75,463.88, 113,152.38 and 31,121.32 is: 46,664.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,463.88 : 113,152.38 = 31,121.32 : x
  2. Step 2: Convert to fraction form
    75,463.88/113,152.38 = 31,121.32/x
  3. Step 3: Cross multiply
    75,463.88x = 113,152.38 × 31,121.32
  4. Step 4: Simplify right side
    75,463.88x = 3,521,451,426.74
  5. Step 5: Solve for x
    x = 3,521,451,426.74/75,463.88
  6. Step 6: Final answer
    x = 46,664.07

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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.