Home / 84,072.33-115,954.20-53,860.47

Finding the Fourth Proportional to 84,072.33, 115,954.20 and 53,860.47

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Solution

The fourth proportional to 84,072.33, 115,954.20 and 53,860.47 is: 74,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,072.33 : 115,954.20 = 53,860.47 : x
  2. Step 2: Convert to fraction form
    84,072.33/115,954.20 = 53,860.47/x
  3. Step 3: Cross multiply
    84,072.33x = 115,954.20 × 53,860.47
  4. Step 4: Simplify right side
    84,072.33x = 6,245,347,275.65
  5. Step 5: Solve for x
    x = 6,245,347,275.65/84,072.33
  6. Step 6: Final answer
    x = 74,285.41

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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.