Home / 66,731.58-100,068.19-19,973.52

Finding the Fourth Proportional to 66,731.58, 100,068.19 and 19,973.52

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Solution

The fourth proportional to 66,731.58, 100,068.19 and 19,973.52 is: 29,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,731.58 : 100,068.19 = 19,973.52 : x
  2. Step 2: Convert to fraction form
    66,731.58/100,068.19 = 19,973.52/x
  3. Step 3: Cross multiply
    66,731.58x = 100,068.19 × 19,973.52
  4. Step 4: Simplify right side
    66,731.58x = 1,998,713,944.40
  5. Step 5: Solve for x
    x = 1,998,713,944.40/66,731.58
  6. Step 6: Final answer
    x = 29,951.55

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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.