Home / 78,750.15-108,677.75-44,300.85

Finding the Fourth Proportional to 78,750.15, 108,677.75 and 44,300.85

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Solution

The fourth proportional to 78,750.15, 108,677.75 and 44,300.85 is: 61,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,750.15 : 108,677.75 = 44,300.85 : x
  2. Step 2: Convert to fraction form
    78,750.15/108,677.75 = 44,300.85/x
  3. Step 3: Cross multiply
    78,750.15x = 108,677.75 × 44,300.85
  4. Step 4: Simplify right side
    78,750.15x = 4,814,517,085.37
  5. Step 5: Solve for x
    x = 4,814,517,085.37/78,750.15
  6. Step 6: Final answer
    x = 61,136.61

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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.