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Finding the Fourth Proportional to 65,689.65, 98,441.33 and 50,829.39

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Solution

The fourth proportional to 65,689.65, 98,441.33 and 50,829.39 is: 76,172.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,689.65 : 98,441.33 = 50,829.39 : x
  2. Step 2: Convert to fraction form
    65,689.65/98,441.33 = 50,829.39/x
  3. Step 3: Cross multiply
    65,689.65x = 98,441.33 × 50,829.39
  4. Step 4: Simplify right side
    65,689.65x = 5,003,712,500.54
  5. Step 5: Solve for x
    x = 5,003,712,500.54/65,689.65
  6. Step 6: Final answer
    x = 76,172.01

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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.