Home / 83,734.40-115,489.85-57,935.90

Finding the Fourth Proportional to 83,734.40, 115,489.85 and 57,935.90

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Solution

The fourth proportional to 83,734.40, 115,489.85 and 57,935.90 is: 79,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,734.40 : 115,489.85 = 57,935.90 : x
  2. Step 2: Convert to fraction form
    83,734.40/115,489.85 = 57,935.90/x
  3. Step 3: Cross multiply
    83,734.40x = 115,489.85 × 57,935.90
  4. Step 4: Simplify right side
    83,734.40x = 6,691,007,533.49
  5. Step 5: Solve for x
    x = 6,691,007,533.49/83,734.40
  6. Step 6: Final answer
    x = 79,907.52

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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.