Home / 83,617.02-115,383.76-49,619.63

Finding the Fourth Proportional to 83,617.02, 115,383.76 and 49,619.63

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Solution

The fourth proportional to 83,617.02, 115,383.76 and 49,619.63 is: 68,470.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,617.02 : 115,383.76 = 49,619.63 : x
  2. Step 2: Convert to fraction form
    83,617.02/115,383.76 = 49,619.63/x
  3. Step 3: Cross multiply
    83,617.02x = 115,383.76 × 49,619.63
  4. Step 4: Simplify right side
    83,617.02x = 5,725,299,643.62
  5. Step 5: Solve for x
    x = 5,725,299,643.62/83,617.02
  6. Step 6: Final answer
    x = 68,470.51

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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.