Home / 83,790.72-115,632.36-46,065.78

Finding the Fourth Proportional to 83,790.72, 115,632.36 and 46,065.78

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Solution

The fourth proportional to 83,790.72, 115,632.36 and 46,065.78 is: 63,571.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,790.72 : 115,632.36 = 46,065.78 : x
  2. Step 2: Convert to fraction form
    83,790.72/115,632.36 = 46,065.78/x
  3. Step 3: Cross multiply
    83,790.72x = 115,632.36 × 46,065.78
  4. Step 4: Simplify right side
    83,790.72x = 5,326,694,856.64
  5. Step 5: Solve for x
    x = 5,326,694,856.64/83,790.72
  6. Step 6: Final answer
    x = 63,571.42

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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.