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Finding the Fourth Proportional to 65,015.08, 89,716.28 and 36,715.30

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Solution

The fourth proportional to 65,015.08, 89,716.28 and 36,715.30 is: 50,664.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,015.08 : 89,716.28 = 36,715.30 : x
  2. Step 2: Convert to fraction form
    65,015.08/89,716.28 = 36,715.30/x
  3. Step 3: Cross multiply
    65,015.08x = 89,716.28 × 36,715.30
  4. Step 4: Simplify right side
    65,015.08x = 3,293,959,727.22
  5. Step 5: Solve for x
    x = 3,293,959,727.22/65,015.08
  6. Step 6: Final answer
    x = 50,664.55

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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.