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Finding the Fourth Proportional to 83,384.80, 124,966.62 and 43,969.81

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Solution

The fourth proportional to 83,384.80, 124,966.62 and 43,969.81 is: 65,896.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,384.80 : 124,966.62 = 43,969.81 : x
  2. Step 2: Convert to fraction form
    83,384.80/124,966.62 = 43,969.81/x
  3. Step 3: Cross multiply
    83,384.80x = 124,966.62 × 43,969.81
  4. Step 4: Simplify right side
    83,384.80x = 5,494,758,537.74
  5. Step 5: Solve for x
    x = 5,494,758,537.74/83,384.80
  6. Step 6: Final answer
    x = 65,896.40

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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.