Home / 66,589.12-99,971.04-51,892.16

Finding the Fourth Proportional to 66,589.12, 99,971.04 and 51,892.16

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Solution

The fourth proportional to 66,589.12, 99,971.04 and 51,892.16 is: 77,906.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,589.12 : 99,971.04 = 51,892.16 : x
  2. Step 2: Convert to fraction form
    66,589.12/99,971.04 = 51,892.16/x
  3. Step 3: Cross multiply
    66,589.12x = 99,971.04 × 51,892.16
  4. Step 4: Simplify right side
    66,589.12x = 5,187,713,203.05
  5. Step 5: Solve for x
    x = 5,187,713,203.05/66,589.12
  6. Step 6: Final answer
    x = 77,906.32

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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.