Home / 84,722.63-126,995.27-28,543.33

Finding the Fourth Proportional to 84,722.63, 126,995.27 and 28,543.33

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Solution

The fourth proportional to 84,722.63, 126,995.27 and 28,543.33 is: 42,785.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,722.63 : 126,995.27 = 28,543.33 : x
  2. Step 2: Convert to fraction form
    84,722.63/126,995.27 = 28,543.33/x
  3. Step 3: Cross multiply
    84,722.63x = 126,995.27 × 28,543.33
  4. Step 4: Simplify right side
    84,722.63x = 3,624,867,653.92
  5. Step 5: Solve for x
    x = 3,624,867,653.92/84,722.63
  6. Step 6: Final answer
    x = 42,785.12

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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.