Home / 66,186.63-99,292.25-21,816.52

Finding the Fourth Proportional to 66,186.63, 99,292.25 and 21,816.52

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Solution

The fourth proportional to 66,186.63, 99,292.25 and 21,816.52 is: 32,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,186.63 : 99,292.25 = 21,816.52 : x
  2. Step 2: Convert to fraction form
    66,186.63/99,292.25 = 21,816.52/x
  3. Step 3: Cross multiply
    66,186.63x = 99,292.25 × 21,816.52
  4. Step 4: Simplify right side
    66,186.63x = 2,166,211,000.66
  5. Step 5: Solve for x
    x = 2,166,211,000.66/66,186.63
  6. Step 6: Final answer
    x = 32,728.83

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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.