Home / 83,984.36-125,680.66-52,409.28

Finding the Fourth Proportional to 83,984.36, 125,680.66 and 52,409.28

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Solution

The fourth proportional to 83,984.36, 125,680.66 and 52,409.28 is: 78,429.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,984.36 : 125,680.66 = 52,409.28 : x
  2. Step 2: Convert to fraction form
    83,984.36/125,680.66 = 52,409.28/x
  3. Step 3: Cross multiply
    83,984.36x = 125,680.66 × 52,409.28
  4. Step 4: Simplify right side
    83,984.36x = 6,586,832,900.52
  5. Step 5: Solve for x
    x = 6,586,832,900.52/83,984.36
  6. Step 6: Final answer
    x = 78,429.28

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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.