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Finding the Fourth Proportional to 66,554.40, 99,764.40 and 33,223.20

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Solution

The fourth proportional to 66,554.40, 99,764.40 and 33,223.20 is: 49,801.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,554.40 : 99,764.40 = 33,223.20 : x
  2. Step 2: Convert to fraction form
    66,554.40/99,764.40 = 33,223.20/x
  3. Step 3: Cross multiply
    66,554.40x = 99,764.40 × 33,223.20
  4. Step 4: Simplify right side
    66,554.40x = 3,314,492,614.08
  5. Step 5: Solve for x
    x = 3,314,492,614.08/66,554.40
  6. Step 6: Final answer
    x = 49,801.25

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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.