Home / 66,161.49-99,242.08-28,716.71

Finding the Fourth Proportional to 66,161.49, 99,242.08 and 28,716.71

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Solution

The fourth proportional to 66,161.49, 99,242.08 and 28,716.71 is: 43,074.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,161.49 : 99,242.08 = 28,716.71 : x
  2. Step 2: Convert to fraction form
    66,161.49/99,242.08 = 28,716.71/x
  3. Step 3: Cross multiply
    66,161.49x = 99,242.08 × 28,716.71
  4. Step 4: Simplify right side
    66,161.49x = 2,849,905,463.15
  5. Step 5: Solve for x
    x = 2,849,905,463.15/66,161.49
  6. Step 6: Final answer
    x = 43,074.99

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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.