Home / 83,889.09-115,771.71-48,085.05

Finding the Fourth Proportional to 83,889.09, 115,771.71 and 48,085.05

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Solution

The fourth proportional to 83,889.09, 115,771.71 and 48,085.05 is: 66,360.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,889.09 : 115,771.71 = 48,085.05 : x
  2. Step 2: Convert to fraction form
    83,889.09/115,771.71 = 48,085.05/x
  3. Step 3: Cross multiply
    83,889.09x = 115,771.71 × 48,085.05
  4. Step 4: Simplify right side
    83,889.09x = 5,566,888,463.94
  5. Step 5: Solve for x
    x = 5,566,888,463.94/83,889.09
  6. Step 6: Final answer
    x = 66,360.10

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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.