Home / 66,282.27-99,438.97-21,909.02

Finding the Fourth Proportional to 66,282.27, 99,438.97 and 21,909.02

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Solution

The fourth proportional to 66,282.27, 99,438.97 and 21,909.02 is: 32,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,282.27 : 99,438.97 = 21,909.02 : x
  2. Step 2: Convert to fraction form
    66,282.27/99,438.97 = 21,909.02/x
  3. Step 3: Cross multiply
    66,282.27x = 99,438.97 × 21,909.02
  4. Step 4: Simplify right side
    66,282.27x = 2,178,610,382.51
  5. Step 5: Solve for x
    x = 2,178,610,382.51/66,282.27
  6. Step 6: Final answer
    x = 32,868.67

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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.