Home / 79,765.12-119,648.64-34,166.72

Finding the Fourth Proportional to 79,765.12, 119,648.64 and 34,166.72

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Solution

The fourth proportional to 79,765.12, 119,648.64 and 34,166.72 is: 51,250.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,765.12 : 119,648.64 = 34,166.72 : x
  2. Step 2: Convert to fraction form
    79,765.12/119,648.64 = 34,166.72/x
  3. Step 3: Cross multiply
    79,765.12x = 119,648.64 × 34,166.72
  4. Step 4: Simplify right side
    79,765.12x = 4,088,001,581.26
  5. Step 5: Solve for x
    x = 4,088,001,581.26/79,765.12
  6. Step 6: Final answer
    x = 51,250.49

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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.