Home / 76,442.12-114,610.85-38,929.60

Finding the Fourth Proportional to 76,442.12, 114,610.85 and 38,929.60

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Solution

The fourth proportional to 76,442.12, 114,610.85 and 38,929.60 is: 58,367.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,442.12 : 114,610.85 = 38,929.60 : x
  2. Step 2: Convert to fraction form
    76,442.12/114,610.85 = 38,929.60/x
  3. Step 3: Cross multiply
    76,442.12x = 114,610.85 × 38,929.60
  4. Step 4: Simplify right side
    76,442.12x = 4,461,754,546.16
  5. Step 5: Solve for x
    x = 4,461,754,546.16/76,442.12
  6. Step 6: Final answer
    x = 58,367.75

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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.