Home / 79,240.85-119,009.35-69,756.56

Finding the Fourth Proportional to 79,240.85, 119,009.35 and 69,756.56

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Solution

The fourth proportional to 79,240.85, 119,009.35 and 69,756.56 is: 104,765.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,240.85 : 119,009.35 = 69,756.56 : x
  2. Step 2: Convert to fraction form
    79,240.85/119,009.35 = 69,756.56/x
  3. Step 3: Cross multiply
    79,240.85x = 119,009.35 × 69,756.56
  4. Step 4: Simplify right side
    79,240.85x = 8,301,682,802.27
  5. Step 5: Solve for x
    x = 8,301,682,802.27/79,240.85
  6. Step 6: Final answer
    x = 104,765.19

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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.