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Finding the Fourth Proportional to 65,195.39, 89,966.52 and 40,040.03

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Solution

The fourth proportional to 65,195.39, 89,966.52 and 40,040.03 is: 55,253.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,195.39 : 89,966.52 = 40,040.03 : x
  2. Step 2: Convert to fraction form
    65,195.39/89,966.52 = 40,040.03/x
  3. Step 3: Cross multiply
    65,195.39x = 89,966.52 × 40,040.03
  4. Step 4: Simplify right side
    65,195.39x = 3,602,262,384.71
  5. Step 5: Solve for x
    x = 3,602,262,384.71/65,195.39
  6. Step 6: Final answer
    x = 55,253.33

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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.