Home / 52,767.12-79,143.36-13,321.80

Finding the Fourth Proportional to 52,767.12, 79,143.36 and 13,321.80

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Solution

The fourth proportional to 52,767.12, 79,143.36 and 13,321.80 is: 19,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,767.12 : 79,143.36 = 13,321.80 : x
  2. Step 2: Convert to fraction form
    52,767.12/79,143.36 = 13,321.80/x
  3. Step 3: Cross multiply
    52,767.12x = 79,143.36 × 13,321.80
  4. Step 4: Simplify right side
    52,767.12x = 1,054,332,013.25
  5. Step 5: Solve for x
    x = 1,054,332,013.25/52,767.12
  6. Step 6: Final answer
    x = 19,980.85

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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.