Home / 65,904.84-98,871.78-19,161.36

Finding the Fourth Proportional to 65,904.84, 98,871.78 and 19,161.36

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Solution

The fourth proportional to 65,904.84, 98,871.78 and 19,161.36 is: 28,746.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,904.84 : 98,871.78 = 19,161.36 : x
  2. Step 2: Convert to fraction form
    65,904.84/98,871.78 = 19,161.36/x
  3. Step 3: Cross multiply
    65,904.84x = 98,871.78 × 19,161.36
  4. Step 4: Simplify right side
    65,904.84x = 1,894,517,770.42
  5. Step 5: Solve for x
    x = 1,894,517,770.42/65,904.84
  6. Step 6: Final answer
    x = 28,746.26

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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.