Home / 76,265.10-105,230.34-49,403.88

Finding the Fourth Proportional to 76,265.10, 105,230.34 and 49,403.88

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Solution

The fourth proportional to 76,265.10, 105,230.34 and 49,403.88 is: 68,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,265.10 : 105,230.34 = 49,403.88 : x
  2. Step 2: Convert to fraction form
    76,265.10/105,230.34 = 49,403.88/x
  3. Step 3: Cross multiply
    76,265.10x = 105,230.34 × 49,403.88
  4. Step 4: Simplify right side
    76,265.10x = 5,198,787,089.72
  5. Step 5: Solve for x
    x = 5,198,787,089.72/76,265.10
  6. Step 6: Final answer
    x = 68,167.31

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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.