Home / 65,905.84-98,873.28-19,162.36

Finding the Fourth Proportional to 65,905.84, 98,873.28 and 19,162.36

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Solution

The fourth proportional to 65,905.84, 98,873.28 and 19,162.36 is: 28,747.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,905.84 : 98,873.28 = 19,162.36 : x
  2. Step 2: Convert to fraction form
    65,905.84/98,873.28 = 19,162.36/x
  3. Step 3: Cross multiply
    65,905.84x = 98,873.28 × 19,162.36
  4. Step 4: Simplify right side
    65,905.84x = 1,894,645,385.74
  5. Step 5: Solve for x
    x = 1,894,645,385.74/65,905.84
  6. Step 6: Final answer
    x = 28,747.76

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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.