Home / 84,283.36-126,382.71-28,103.58

Finding the Fourth Proportional to 84,283.36, 126,382.71 and 28,103.58

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Solution

The fourth proportional to 84,283.36, 126,382.71 and 28,103.58 is: 42,141.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,283.36 : 126,382.71 = 28,103.58 : x
  2. Step 2: Convert to fraction form
    84,283.36/126,382.71 = 28,103.58/x
  3. Step 3: Cross multiply
    84,283.36x = 126,382.71 × 28,103.58
  4. Step 4: Simplify right side
    84,283.36x = 3,551,806,601.10
  5. Step 5: Solve for x
    x = 3,551,806,601.10/84,283.36
  6. Step 6: Final answer
    x = 42,141.26

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1.5x scale

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.