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Finding the Fourth Proportional to 66,232.32, 99,298.88 and 39,930.88

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Solution

The fourth proportional to 66,232.32, 99,298.88 and 39,930.88 is: 59,866.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,232.32 : 99,298.88 = 39,930.88 : x
  2. Step 2: Convert to fraction form
    66,232.32/99,298.88 = 39,930.88/x
  3. Step 3: Cross multiply
    66,232.32x = 99,298.88 × 39,930.88
  4. Step 4: Simplify right side
    66,232.32x = 3,965,091,661.41
  5. Step 5: Solve for x
    x = 3,965,091,661.41/66,232.32
  6. Step 6: Final answer
    x = 59,866.42

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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.