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Finding the Fourth Proportional to 66,536.03, 99,804.05 and 53,146.34

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Solution

The fourth proportional to 66,536.03, 99,804.05 and 53,146.34 is: 79,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,536.03 : 99,804.05 = 53,146.34 : x
  2. Step 2: Convert to fraction form
    66,536.03/99,804.05 = 53,146.34/x
  3. Step 3: Cross multiply
    66,536.03x = 99,804.05 × 53,146.34
  4. Step 4: Simplify right side
    66,536.03x = 5,304,220,012.26
  5. Step 5: Solve for x
    x = 5,304,220,012.26/66,536.03
  6. Step 6: Final answer
    x = 79,719.51

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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.