Home / 84,541.61-126,808.06-28,382.15

Finding the Fourth Proportional to 84,541.61, 126,808.06 and 28,382.15

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Solution

The fourth proportional to 84,541.61, 126,808.06 and 28,382.15 is: 42,571.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,541.61 : 126,808.06 = 28,382.15 : x
  2. Step 2: Convert to fraction form
    84,541.61/126,808.06 = 28,382.15/x
  3. Step 3: Cross multiply
    84,541.61x = 126,808.06 × 28,382.15
  4. Step 4: Simplify right side
    84,541.61x = 3,599,085,380.13
  5. Step 5: Solve for x
    x = 3,599,085,380.13/84,541.61
  6. Step 6: Final answer
    x = 42,571.76

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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.