Home / 79,381.94-109,548.48-43,575.28

Finding the Fourth Proportional to 79,381.94, 109,548.48 and 43,575.28

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Solution

The fourth proportional to 79,381.94, 109,548.48 and 43,575.28 is: 60,134.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,381.94 : 109,548.48 = 43,575.28 : x
  2. Step 2: Convert to fraction form
    79,381.94/109,548.48 = 43,575.28/x
  3. Step 3: Cross multiply
    79,381.94x = 109,548.48 × 43,575.28
  4. Step 4: Simplify right side
    79,381.94x = 4,773,605,689.57
  5. Step 5: Solve for x
    x = 4,773,605,689.57/79,381.94
  6. Step 6: Final answer
    x = 60,134.66

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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.