Home / 66,530.28-99,811.40-22,157.43

Finding the Fourth Proportional to 66,530.28, 99,811.40 and 22,157.43

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Solution

The fourth proportional to 66,530.28, 99,811.40 and 22,157.43 is: 33,241.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,530.28 : 99,811.40 = 22,157.43 : x
  2. Step 2: Convert to fraction form
    66,530.28/99,811.40 = 22,157.43/x
  3. Step 3: Cross multiply
    66,530.28x = 99,811.40 × 22,157.43
  4. Step 4: Simplify right side
    66,530.28x = 2,211,564,108.70
  5. Step 5: Solve for x
    x = 2,211,564,108.70/66,530.28
  6. Step 6: Final answer
    x = 33,241.47

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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.