Home / 76,650.92-105,778.02-42,659.24

Finding the Fourth Proportional to 76,650.92, 105,778.02 and 42,659.24

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Solution

The fourth proportional to 76,650.92, 105,778.02 and 42,659.24 is: 58,869.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,650.92 : 105,778.02 = 42,659.24 : x
  2. Step 2: Convert to fraction form
    76,650.92/105,778.02 = 42,659.24/x
  3. Step 3: Cross multiply
    76,650.92x = 105,778.02 × 42,659.24
  4. Step 4: Simplify right side
    76,650.92x = 4,512,409,941.90
  5. Step 5: Solve for x
    x = 4,512,409,941.90/76,650.92
  6. Step 6: Final answer
    x = 58,869.61

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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.