Home / 83,736.59-115,565.94-47,931.75

Finding the Fourth Proportional to 83,736.59, 115,565.94 and 47,931.75

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Solution

The fourth proportional to 83,736.59, 115,565.94 and 47,931.75 is: 66,151.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,736.59 : 115,565.94 = 47,931.75 : x
  2. Step 2: Convert to fraction form
    83,736.59/115,565.94 = 47,931.75/x
  3. Step 3: Cross multiply
    83,736.59x = 115,565.94 × 47,931.75
  4. Step 4: Simplify right side
    83,736.59x = 5,539,277,744.60
  5. Step 5: Solve for x
    x = 5,539,277,744.60/83,736.59
  6. Step 6: Final answer
    x = 66,151.23

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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.