Home / 76,829.40-115,244.10-60,240.60

Finding the Fourth Proportional to 76,829.40, 115,244.10 and 60,240.60

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Solution

The fourth proportional to 76,829.40, 115,244.10 and 60,240.60 is: 90,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,829.40 : 115,244.10 = 60,240.60 : x
  2. Step 2: Convert to fraction form
    76,829.40/115,244.10 = 60,240.60/x
  3. Step 3: Cross multiply
    76,829.40x = 115,244.10 × 60,240.60
  4. Step 4: Simplify right side
    76,829.40x = 6,942,373,730.46
  5. Step 5: Solve for x
    x = 6,942,373,730.46/76,829.40
  6. Step 6: Final answer
    x = 90,360.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.