Home / 45,806.12-63,221.66-31,309.02

Finding the Fourth Proportional to 45,806.12, 63,221.66 and 31,309.02

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Solution

The fourth proportional to 45,806.12, 63,221.66 and 31,309.02 is: 43,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,806.12 : 63,221.66 = 31,309.02 : x
  2. Step 2: Convert to fraction form
    45,806.12/63,221.66 = 31,309.02/x
  3. Step 3: Cross multiply
    45,806.12x = 63,221.66 × 31,309.02
  4. Step 4: Simplify right side
    45,806.12x = 1,979,408,217.37
  5. Step 5: Solve for x
    x = 1,979,408,217.37/45,806.12
  6. Step 6: Final answer
    x = 43,212.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.