Home / 76,197.78-105,144.75-42,202.62

Finding the Fourth Proportional to 76,197.78, 105,144.75 and 42,202.62

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Solution

The fourth proportional to 76,197.78, 105,144.75 and 42,202.62 is: 58,235.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,197.78 : 105,144.75 = 42,202.62 : x
  2. Step 2: Convert to fraction form
    76,197.78/105,144.75 = 42,202.62/x
  3. Step 3: Cross multiply
    76,197.78x = 105,144.75 × 42,202.62
  4. Step 4: Simplify right side
    76,197.78x = 4,437,383,929.25
  5. Step 5: Solve for x
    x = 4,437,383,929.25/76,197.78
  6. Step 6: Final answer
    x = 58,235.08

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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.