Home / 65,812.77-98,729.69-21,436.11

Finding the Fourth Proportional to 65,812.77, 98,729.69 and 21,436.11

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Solution

The fourth proportional to 65,812.77, 98,729.69 and 21,436.11 is: 32,157.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,812.77 : 98,729.69 = 21,436.11 : x
  2. Step 2: Convert to fraction form
    65,812.77/98,729.69 = 21,436.11/x
  3. Step 3: Cross multiply
    65,812.77x = 98,729.69 × 21,436.11
  4. Step 4: Simplify right side
    65,812.77x = 2,116,380,387.93
  5. Step 5: Solve for x
    x = 2,116,380,387.93/65,812.77
  6. Step 6: Final answer
    x = 32,157.59

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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.