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Finding the Fourth Proportional to 76,309.75, 105,313.85 and 44,480.69

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Solution

The fourth proportional to 76,309.75, 105,313.85 and 44,480.69 is: 61,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,309.75 : 105,313.85 = 44,480.69 : x
  2. Step 2: Convert to fraction form
    76,309.75/105,313.85 = 44,480.69/x
  3. Step 3: Cross multiply
    76,309.75x = 105,313.85 × 44,480.69
  4. Step 4: Simplify right side
    76,309.75x = 4,684,432,994.60
  5. Step 5: Solve for x
    x = 4,684,432,994.60/76,309.75
  6. Step 6: Final answer
    x = 61,387.09

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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.