Home / 83,965.18-115,867.11-50,424.70

Finding the Fourth Proportional to 83,965.18, 115,867.11 and 50,424.70

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Solution

The fourth proportional to 83,965.18, 115,867.11 and 50,424.70 is: 69,583.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,965.18 : 115,867.11 = 50,424.70 : x
  2. Step 2: Convert to fraction form
    83,965.18/115,867.11 = 50,424.70/x
  3. Step 3: Cross multiply
    83,965.18x = 115,867.11 × 50,424.70
  4. Step 4: Simplify right side
    83,965.18x = 5,842,564,261.62
  5. Step 5: Solve for x
    x = 5,842,564,261.62/83,965.18
  6. Step 6: Final answer
    x = 69,583.18

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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.