Home / 112,992.45-169,489.62-28,752.72

Finding the Fourth Proportional to 112,992.45, 169,489.62 and 28,752.72

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Solution

The fourth proportional to 112,992.45, 169,489.62 and 28,752.72 is: 43,129.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,992.45 : 169,489.62 = 28,752.72 : x
  2. Step 2: Convert to fraction form
    112,992.45/169,489.62 = 28,752.72/x
  3. Step 3: Cross multiply
    112,992.45x = 169,489.62 × 28,752.72
  4. Step 4: Simplify right side
    112,992.45x = 4,873,287,586.77
  5. Step 5: Solve for x
    x = 4,873,287,586.77/112,992.45
  6. Step 6: Final answer
    x = 43,129.32

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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.