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Finding the Fourth Proportional to 79,775.28, 119,673.90 and 35,401.05

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Solution

The fourth proportional to 79,775.28, 119,673.90 and 35,401.05 is: 53,106.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,775.28 : 119,673.90 = 35,401.05 : x
  2. Step 2: Convert to fraction form
    79,775.28/119,673.90 = 35,401.05/x
  3. Step 3: Cross multiply
    79,775.28x = 119,673.90 × 35,401.05
  4. Step 4: Simplify right side
    79,775.28x = 4,236,581,717.60
  5. Step 5: Solve for x
    x = 4,236,581,717.60/79,775.28
  6. Step 6: Final answer
    x = 53,106.45

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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.