Home / 52,911.83-79,366.87-21,321.12

Finding the Fourth Proportional to 52,911.83, 79,366.87 and 21,321.12

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Solution

The fourth proportional to 52,911.83, 79,366.87 and 21,321.12 is: 31,981.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,911.83 : 79,366.87 = 21,321.12 : x
  2. Step 2: Convert to fraction form
    52,911.83/79,366.87 = 21,321.12/x
  3. Step 3: Cross multiply
    52,911.83x = 79,366.87 × 21,321.12
  4. Step 4: Simplify right side
    52,911.83x = 1,692,190,559.29
  5. Step 5: Solve for x
    x = 1,692,190,559.29/52,911.83
  6. Step 6: Final answer
    x = 31,981.33

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Similar ratio
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1.5x scale

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.