Home / 76,621.60-114,932.40-39,167.20

Finding the Fourth Proportional to 76,621.60, 114,932.40 and 39,167.20

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Solution

The fourth proportional to 76,621.60, 114,932.40 and 39,167.20 is: 58,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,621.60 : 114,932.40 = 39,167.20 : x
  2. Step 2: Convert to fraction form
    76,621.60/114,932.40 = 39,167.20/x
  3. Step 3: Cross multiply
    76,621.60x = 114,932.40 × 39,167.20
  4. Step 4: Simplify right side
    76,621.60x = 4,501,580,297.28
  5. Step 5: Solve for x
    x = 4,501,580,297.28/76,621.60
  6. Step 6: Final answer
    x = 58,750.80

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1.5x scale

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.