Home / 83,934.42-115,878.78-52,120.86

Finding the Fourth Proportional to 83,934.42, 115,878.78 and 52,120.86

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Solution

The fourth proportional to 83,934.42, 115,878.78 and 52,120.86 is: 71,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,934.42 : 115,878.78 = 52,120.86 : x
  2. Step 2: Convert to fraction form
    83,934.42/115,878.78 = 52,120.86/x
  3. Step 3: Cross multiply
    83,934.42x = 115,878.78 × 52,120.86
  4. Step 4: Simplify right side
    83,934.42x = 6,039,701,669.35
  5. Step 5: Solve for x
    x = 6,039,701,669.35/83,934.42
  6. Step 6: Final answer
    x = 71,957.39

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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.