Home / 76,712.75-105,876.20-48,043.27

Finding the Fourth Proportional to 76,712.75, 105,876.20 and 48,043.27

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Solution

The fourth proportional to 76,712.75, 105,876.20 and 48,043.27 is: 66,307.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,712.75 : 105,876.20 = 48,043.27 : x
  2. Step 2: Convert to fraction form
    76,712.75/105,876.20 = 48,043.27/x
  3. Step 3: Cross multiply
    76,712.75x = 105,876.20 × 48,043.27
  4. Step 4: Simplify right side
    76,712.75x = 5,086,638,718.59
  5. Step 5: Solve for x
    x = 5,086,638,718.59/76,712.75
  6. Step 6: Final answer
    x = 66,307.61

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1.5x scale

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.