Home / 66,221.20-99,344.60-33,389.20

Finding the Fourth Proportional to 66,221.20, 99,344.60 and 33,389.20

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Solution

The fourth proportional to 66,221.20, 99,344.60 and 33,389.20 is: 50,090.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,221.20 : 99,344.60 = 33,389.20 : x
  2. Step 2: Convert to fraction form
    66,221.20/99,344.60 = 33,389.20/x
  3. Step 3: Cross multiply
    66,221.20x = 99,344.60 × 33,389.20
  4. Step 4: Simplify right side
    66,221.20x = 3,317,036,718.32
  5. Step 5: Solve for x
    x = 3,317,036,718.32/66,221.20
  6. Step 6: Final answer
    x = 50,090.25

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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.