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Finding the Fourth Proportional to 66,871.58, 100,464.03 and 63,088.67

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Solution

The fourth proportional to 66,871.58, 100,464.03 and 63,088.67 is: 94,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,871.58 : 100,464.03 = 63,088.67 : x
  2. Step 2: Convert to fraction form
    66,871.58/100,464.03 = 63,088.67/x
  3. Step 3: Cross multiply
    66,871.58x = 100,464.03 × 63,088.67
  4. Step 4: Simplify right side
    66,871.58x = 6,338,142,286.70
  5. Step 5: Solve for x
    x = 6,338,142,286.70/66,871.58
  6. Step 6: Final answer
    x = 94,780.81

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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.