Home / 83,759.49-115,548.75-49,769.01

Finding the Fourth Proportional to 83,759.49, 115,548.75 and 49,769.01

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Solution

The fourth proportional to 83,759.49, 115,548.75 and 49,769.01 is: 68,657.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,759.49 : 115,548.75 = 49,769.01 : x
  2. Step 2: Convert to fraction form
    83,759.49/115,548.75 = 49,769.01/x
  3. Step 3: Cross multiply
    83,759.49x = 115,548.75 × 49,769.01
  4. Step 4: Simplify right side
    83,759.49x = 5,750,746,894.24
  5. Step 5: Solve for x
    x = 5,750,746,894.24/83,759.49
  6. Step 6: Final answer
    x = 68,657.85

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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.