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Finding the Fourth Proportional to 44,451, 66,709.32 and 21,077.52

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Solution

The fourth proportional to 44,451, 66,709.32 and 21,077.52 is: 31,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,451 : 66,709.32 = 21,077.52 : x
  2. Step 2: Convert to fraction form
    44,451/66,709.32 = 21,077.52/x
  3. Step 3: Cross multiply
    44,451x = 66,709.32 × 21,077.52
  4. Step 4: Simplify right side
    44,451x = 1,406,067,026.49
  5. Step 5: Solve for x
    x = 1,406,067,026.49/44,451
  6. Step 6: Final answer
    x = 31,631.84

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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.