Home / 76,193.14-105,147.30-45,972.61

Finding the Fourth Proportional to 76,193.14, 105,147.30 and 45,972.61

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Solution

The fourth proportional to 76,193.14, 105,147.30 and 45,972.61 is: 63,442.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,193.14 : 105,147.30 = 45,972.61 : x
  2. Step 2: Convert to fraction form
    76,193.14/105,147.30 = 45,972.61/x
  3. Step 3: Cross multiply
    76,193.14x = 105,147.30 × 45,972.61
  4. Step 4: Simplify right side
    76,193.14x = 4,833,895,815.45
  5. Step 5: Solve for x
    x = 4,833,895,815.45/76,193.14
  6. Step 6: Final answer
    x = 63,442.66

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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.