Home / 79,579.89-109,865.68-52,758.74

Finding the Fourth Proportional to 79,579.89, 109,865.68 and 52,758.74

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Solution

The fourth proportional to 79,579.89, 109,865.68 and 52,758.74 is: 72,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,579.89 : 109,865.68 = 52,758.74 : x
  2. Step 2: Convert to fraction form
    79,579.89/109,865.68 = 52,758.74/x
  3. Step 3: Cross multiply
    79,579.89x = 109,865.68 × 52,758.74
  4. Step 4: Simplify right side
    79,579.89x = 5,796,374,988.81
  5. Step 5: Solve for x
    x = 5,796,374,988.81/79,579.89
  6. Step 6: Final answer
    x = 72,837.18

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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.