Home / 83,505.16-115,241.88-49,533.76

Finding the Fourth Proportional to 83,505.16, 115,241.88 and 49,533.76

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Solution

The fourth proportional to 83,505.16, 115,241.88 and 49,533.76 is: 68,359.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,505.16 : 115,241.88 = 49,533.76 : x
  2. Step 2: Convert to fraction form
    83,505.16/115,241.88 = 49,533.76/x
  3. Step 3: Cross multiply
    83,505.16x = 115,241.88 × 49,533.76
  4. Step 4: Simplify right side
    83,505.16x = 5,708,363,625.87
  5. Step 5: Solve for x
    x = 5,708,363,625.87/83,505.16
  6. Step 6: Final answer
    x = 68,359.41

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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.