Home / 78,609.24-108,481.17-46,779.30

Finding the Fourth Proportional to 78,609.24, 108,481.17 and 46,779.30

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Solution

The fourth proportional to 78,609.24, 108,481.17 and 46,779.30 is: 64,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,609.24 : 108,481.17 = 46,779.30 : x
  2. Step 2: Convert to fraction form
    78,609.24/108,481.17 = 46,779.30/x
  3. Step 3: Cross multiply
    78,609.24x = 108,481.17 × 46,779.30
  4. Step 4: Simplify right side
    78,609.24x = 5,074,673,195.78
  5. Step 5: Solve for x
    x = 5,074,673,195.78/78,609.24
  6. Step 6: Final answer
    x = 64,555.68

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1.5x scale

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.