Home / 84,021.05-115,957.22-62,763.41

Finding the Fourth Proportional to 84,021.05, 115,957.22 and 62,763.41

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Solution

The fourth proportional to 84,021.05, 115,957.22 and 62,763.41 is: 86,619.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,021.05 : 115,957.22 = 62,763.41 : x
  2. Step 2: Convert to fraction form
    84,021.05/115,957.22 = 62,763.41/x
  3. Step 3: Cross multiply
    84,021.05x = 115,957.22 × 62,763.41
  4. Step 4: Simplify right side
    84,021.05x = 7,277,870,541.32
  5. Step 5: Solve for x
    x = 7,277,870,541.32/84,021.05
  6. Step 6: Final answer
    x = 86,619.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.