Home / 65,716.32-98,583.39-21,328.74

Finding the Fourth Proportional to 65,716.32, 98,583.39 and 21,328.74

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Solution

The fourth proportional to 65,716.32, 98,583.39 and 21,328.74 is: 31,996.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,716.32 : 98,583.39 = 21,328.74 : x
  2. Step 2: Convert to fraction form
    65,716.32/98,583.39 = 21,328.74/x
  3. Step 3: Cross multiply
    65,716.32x = 98,583.39 × 21,328.74
  4. Step 4: Simplify right side
    65,716.32x = 2,102,659,493.63
  5. Step 5: Solve for x
    x = 2,102,659,493.63/65,716.32
  6. Step 6: Final answer
    x = 31,996.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.