Home / 75,162.72-112,744.06-30,779.36

Finding the Fourth Proportional to 75,162.72, 112,744.06 and 30,779.36

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Solution

The fourth proportional to 75,162.72, 112,744.06 and 30,779.36 is: 46,169.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,162.72 : 112,744.06 = 30,779.36 : x
  2. Step 2: Convert to fraction form
    75,162.72/112,744.06 = 30,779.36/x
  3. Step 3: Cross multiply
    75,162.72x = 112,744.06 × 30,779.36
  4. Step 4: Simplify right side
    75,162.72x = 3,470,190,010.60
  5. Step 5: Solve for x
    x = 3,470,190,010.60/75,162.72
  6. Step 6: Final answer
    x = 46,169.03

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1.5x scale

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.