Home / 79,266.15-109,388.18-45,279.14

Finding the Fourth Proportional to 79,266.15, 109,388.18 and 45,279.14

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Solution

The fourth proportional to 79,266.15, 109,388.18 and 45,279.14 is: 62,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,266.15 : 109,388.18 = 45,279.14 : x
  2. Step 2: Convert to fraction form
    79,266.15/109,388.18 = 45,279.14/x
  3. Step 3: Cross multiply
    79,266.15x = 109,388.18 × 45,279.14
  4. Step 4: Simplify right side
    79,266.15x = 4,953,002,282.82
  5. Step 5: Solve for x
    x = 4,953,002,282.82/79,266.15
  6. Step 6: Final answer
    x = 62,485.72

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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.