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Finding the Fourth Proportional to 65,083.50, 89,815.29 and 35,275.50

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Solution

The fourth proportional to 65,083.50, 89,815.29 and 35,275.50 is: 48,680.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,083.50 : 89,815.29 = 35,275.50 : x
  2. Step 2: Convert to fraction form
    65,083.50/89,815.29 = 35,275.50/x
  3. Step 3: Cross multiply
    65,083.50x = 89,815.29 × 35,275.50
  4. Step 4: Simplify right side
    65,083.50x = 3,168,279,262.40
  5. Step 5: Solve for x
    x = 3,168,279,262.40/65,083.50
  6. Step 6: Final answer
    x = 48,680.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.