Home / 79,588.20-109,767.78-70,007.40

Finding the Fourth Proportional to 79,588.20, 109,767.78 and 70,007.40

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Solution

The fourth proportional to 79,588.20, 109,767.78 and 70,007.40 is: 96,553.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,588.20 : 109,767.78 = 70,007.40 : x
  2. Step 2: Convert to fraction form
    79,588.20/109,767.78 = 70,007.40/x
  3. Step 3: Cross multiply
    79,588.20x = 109,767.78 × 70,007.40
  4. Step 4: Simplify right side
    79,588.20x = 7,684,556,881.57
  5. Step 5: Solve for x
    x = 7,684,556,881.57/79,588.20
  6. Step 6: Final answer
    x = 96,553.97

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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.