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Finding the Fourth Proportional to 66,294.64, 99,448.44 and 19,560.88

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Solution

The fourth proportional to 66,294.64, 99,448.44 and 19,560.88 is: 29,343.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,294.64 : 99,448.44 = 19,560.88 : x
  2. Step 2: Convert to fraction form
    66,294.64/99,448.44 = 19,560.88/x
  3. Step 3: Cross multiply
    66,294.64x = 99,448.44 × 19,560.88
  4. Step 4: Simplify right side
    66,294.64x = 1,945,299,001.03
  5. Step 5: Solve for x
    x = 1,945,299,001.03/66,294.64
  6. Step 6: Final answer
    x = 29,343.23

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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.