Home / 53,145.16-79,723.14-18,087.28

Finding the Fourth Proportional to 53,145.16, 79,723.14 and 18,087.28

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Solution

The fourth proportional to 53,145.16, 79,723.14 and 18,087.28 is: 27,132.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,145.16 : 79,723.14 = 18,087.28 : x
  2. Step 2: Convert to fraction form
    53,145.16/79,723.14 = 18,087.28/x
  3. Step 3: Cross multiply
    53,145.16x = 79,723.14 × 18,087.28
  4. Step 4: Simplify right side
    53,145.16x = 1,441,974,755.66
  5. Step 5: Solve for x
    x = 1,441,974,755.66/53,145.16
  6. Step 6: Final answer
    x = 27,132.76

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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.