Home / 66,180.94-99,215.54-28,712.76

Finding the Fourth Proportional to 66,180.94, 99,215.54 and 28,712.76

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Solution

The fourth proportional to 66,180.94, 99,215.54 and 28,712.76 is: 43,044.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,180.94 : 99,215.54 = 28,712.76 : x
  2. Step 2: Convert to fraction form
    66,180.94/99,215.54 = 28,712.76/x
  3. Step 3: Cross multiply
    66,180.94x = 99,215.54 × 28,712.76
  4. Step 4: Simplify right side
    66,180.94x = 2,848,751,988.29
  5. Step 5: Solve for x
    x = 2,848,751,988.29/66,180.94
  6. Step 6: Final answer
    x = 43,044.90

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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.