Home / 66,282.05-99,438.65-21,908.81

Finding the Fourth Proportional to 66,282.05, 99,438.65 and 21,908.81

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Solution

The fourth proportional to 66,282.05, 99,438.65 and 21,908.81 is: 32,868.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,282.05 : 99,438.65 = 21,908.81 : x
  2. Step 2: Convert to fraction form
    66,282.05/99,438.65 = 21,908.81/x
  3. Step 3: Cross multiply
    66,282.05x = 99,438.65 × 21,908.81
  4. Step 4: Simplify right side
    66,282.05x = 2,178,582,151.37
  5. Step 5: Solve for x
    x = 2,178,582,151.37/66,282.05
  6. Step 6: Final answer
    x = 32,868.36

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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.