Home / 80,701.06-121,051.60-21,536.94

Finding the Fourth Proportional to 80,701.06, 121,051.60 and 21,536.94

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Solution

The fourth proportional to 80,701.06, 121,051.60 and 21,536.94 is: 32,305.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,701.06 : 121,051.60 = 21,536.94 : x
  2. Step 2: Convert to fraction form
    80,701.06/121,051.60 = 21,536.94/x
  3. Step 3: Cross multiply
    80,701.06x = 121,051.60 × 21,536.94
  4. Step 4: Simplify right side
    80,701.06x = 2,607,081,046.10
  5. Step 5: Solve for x
    x = 2,607,081,046.10/80,701.06
  6. Step 6: Final answer
    x = 32,305.41

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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.