Home / 61,212.06-91,621.25-31,589.55

Finding the Fourth Proportional to 61,212.06, 91,621.25 and 31,589.55

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Solution

The fourth proportional to 61,212.06, 91,621.25 and 31,589.55 is: 47,282.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,212.06 : 91,621.25 = 31,589.55 : x
  2. Step 2: Convert to fraction form
    61,212.06/91,621.25 = 31,589.55/x
  3. Step 3: Cross multiply
    61,212.06x = 91,621.25 × 31,589.55
  4. Step 4: Simplify right side
    61,212.06x = 2,894,274,057.94
  5. Step 5: Solve for x
    x = 2,894,274,057.94/61,212.06
  6. Step 6: Final answer
    x = 47,282.74

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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.