Home / 83,727.23-115,510.97-47,420.33

Finding the Fourth Proportional to 83,727.23, 115,510.97 and 47,420.33

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Solution

The fourth proportional to 83,727.23, 115,510.97 and 47,420.33 is: 65,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,727.23 : 115,510.97 = 47,420.33 : x
  2. Step 2: Convert to fraction form
    83,727.23/115,510.97 = 47,420.33/x
  3. Step 3: Cross multiply
    83,727.23x = 115,510.97 × 47,420.33
  4. Step 4: Simplify right side
    83,727.23x = 5,477,568,078.92
  5. Step 5: Solve for x
    x = 5,477,568,078.92/83,727.23
  6. Step 6: Final answer
    x = 65,421.58

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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.