Home / 213,530.06-320,288.85-55,758.53

Finding the Fourth Proportional to 213,530.06, 320,288.85 and 55,758.53

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Solution

The fourth proportional to 213,530.06, 320,288.85 and 55,758.53 is: 83,636.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,530.06 : 320,288.85 = 55,758.53 : x
  2. Step 2: Convert to fraction form
    213,530.06/320,288.85 = 55,758.53/x
  3. Step 3: Cross multiply
    213,530.06x = 320,288.85 × 55,758.53
  4. Step 4: Simplify right side
    213,530.06x = 17,858,833,849.95
  5. Step 5: Solve for x
    x = 17,858,833,849.95/213,530.06
  6. Step 6: Final answer
    x = 83,636.16

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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.