Home / 76,892.12-106,121.61-45,073.70

Finding the Fourth Proportional to 76,892.12, 106,121.61 and 45,073.70

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Solution

The fourth proportional to 76,892.12, 106,121.61 and 45,073.70 is: 62,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,892.12 : 106,121.61 = 45,073.70 : x
  2. Step 2: Convert to fraction form
    76,892.12/106,121.61 = 45,073.70/x
  3. Step 3: Cross multiply
    76,892.12x = 106,121.61 × 45,073.70
  4. Step 4: Simplify right side
    76,892.12x = 4,783,293,612.66
  5. Step 5: Solve for x
    x = 4,783,293,612.66/76,892.12
  6. Step 6: Final answer
    x = 62,207.85

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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.