Home / 76,160.85-105,149.91-48,949.10

Finding the Fourth Proportional to 76,160.85, 105,149.91 and 48,949.10

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Solution

The fourth proportional to 76,160.85, 105,149.91 and 48,949.10 is: 67,580.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,160.85 : 105,149.91 = 48,949.10 : x
  2. Step 2: Convert to fraction form
    76,160.85/105,149.91 = 48,949.10/x
  3. Step 3: Cross multiply
    76,160.85x = 105,149.91 × 48,949.10
  4. Step 4: Simplify right side
    76,160.85x = 5,146,993,459.58
  5. Step 5: Solve for x
    x = 5,146,993,459.58/76,160.85
  6. Step 6: Final answer
    x = 67,580.57

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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.