Home / 81,453.80-122,290.05-52,002.20

Finding the Fourth Proportional to 81,453.80, 122,290.05 and 52,002.20

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Solution

The fourth proportional to 81,453.80, 122,290.05 and 52,002.20 is: 78,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,453.80 : 122,290.05 = 52,002.20 : x
  2. Step 2: Convert to fraction form
    81,453.80/122,290.05 = 52,002.20/x
  3. Step 3: Cross multiply
    81,453.80x = 122,290.05 × 52,002.20
  4. Step 4: Simplify right side
    81,453.80x = 6,359,351,638.11
  5. Step 5: Solve for x
    x = 6,359,351,638.11/81,453.80
  6. Step 6: Final answer
    x = 78,073.11

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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.