Home / 76,600.36-105,723.66-49,705.12

Finding the Fourth Proportional to 76,600.36, 105,723.66 and 49,705.12

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Solution

The fourth proportional to 76,600.36, 105,723.66 and 49,705.12 is: 68,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,600.36 : 105,723.66 = 49,705.12 : x
  2. Step 2: Convert to fraction form
    76,600.36/105,723.66 = 49,705.12/x
  3. Step 3: Cross multiply
    76,600.36x = 105,723.66 × 49,705.12
  4. Step 4: Simplify right side
    76,600.36x = 5,255,007,207.14
  5. Step 5: Solve for x
    x = 5,255,007,207.14/76,600.36
  6. Step 6: Final answer
    x = 68,602.90

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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.