Home / 66,146.47-99,233.37-21,775.88

Finding the Fourth Proportional to 66,146.47, 99,233.37 and 21,775.88

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Solution

The fourth proportional to 66,146.47, 99,233.37 and 21,775.88 is: 32,668.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,146.47 : 99,233.37 = 21,775.88 : x
  2. Step 2: Convert to fraction form
    66,146.47/99,233.37 = 21,775.88/x
  3. Step 3: Cross multiply
    66,146.47x = 99,233.37 × 21,775.88
  4. Step 4: Simplify right side
    66,146.47x = 2,160,893,957.12
  5. Step 5: Solve for x
    x = 2,160,893,957.12/66,146.47
  6. Step 6: Final answer
    x = 32,668.32

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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.