Home / 76,829.60-115,244.40-62,832.80

Finding the Fourth Proportional to 76,829.60, 115,244.40 and 62,832.80

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Solution

The fourth proportional to 76,829.60, 115,244.40 and 62,832.80 is: 94,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,829.60 : 115,244.40 = 62,832.80 : x
  2. Step 2: Convert to fraction form
    76,829.60/115,244.40 = 62,832.80/x
  3. Step 3: Cross multiply
    76,829.60x = 115,244.40 × 62,832.80
  4. Step 4: Simplify right side
    76,829.60x = 7,241,128,336.32
  5. Step 5: Solve for x
    x = 7,241,128,336.32/76,829.60
  6. Step 6: Final answer
    x = 94,249.20

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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.