Home / 112,879.39-169,328.30-56,690.60

Finding the Fourth Proportional to 112,879.39, 169,328.30 and 56,690.60

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Solution

The fourth proportional to 112,879.39, 169,328.30 and 56,690.60 is: 85,040.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,879.39 : 169,328.30 = 56,690.60 : x
  2. Step 2: Convert to fraction form
    112,879.39/169,328.30 = 56,690.60/x
  3. Step 3: Cross multiply
    112,879.39x = 169,328.30 × 56,690.60
  4. Step 4: Simplify right side
    112,879.39x = 9,599,321,793.89
  5. Step 5: Solve for x
    x = 9,599,321,793.89/112,879.39
  6. Step 6: Final answer
    x = 85,040.52

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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.