Home / 53,745.74-80,618.36-13,764.65

Finding the Fourth Proportional to 53,745.74, 80,618.36 and 13,764.65

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Solution

The fourth proportional to 53,745.74, 80,618.36 and 13,764.65 is: 20,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,745.74 : 80,618.36 = 13,764.65 : x
  2. Step 2: Convert to fraction form
    53,745.74/80,618.36 = 13,764.65/x
  3. Step 3: Cross multiply
    53,745.74x = 80,618.36 × 13,764.65
  4. Step 4: Simplify right side
    53,745.74x = 1,109,683,037.06
  5. Step 5: Solve for x
    x = 1,109,683,037.06/53,745.74
  6. Step 6: Final answer
    x = 20,646.90

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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.