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Finding the Fourth Proportional to 112,879.80, 169,314.30 and 37,992.60

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Solution

The fourth proportional to 112,879.80, 169,314.30 and 37,992.60 is: 56,987.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,879.80 : 169,314.30 = 37,992.60 : x
  2. Step 2: Convert to fraction form
    112,879.80/169,314.30 = 37,992.60/x
  3. Step 3: Cross multiply
    112,879.80x = 169,314.30 × 37,992.60
  4. Step 4: Simplify right side
    112,879.80x = 6,432,690,474.18
  5. Step 5: Solve for x
    x = 6,432,690,474.18/112,879.80
  6. Step 6: Final answer
    x = 56,987.08

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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.