Home / 126,579.96-189,758.21-47,749.55

Finding the Fourth Proportional to 126,579.96, 189,758.21 and 47,749.55

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Solution

The fourth proportional to 126,579.96, 189,758.21 and 47,749.55 is: 71,582.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,579.96 : 189,758.21 = 47,749.55 : x
  2. Step 2: Convert to fraction form
    126,579.96/189,758.21 = 47,749.55/x
  3. Step 3: Cross multiply
    126,579.96x = 189,758.21 × 47,749.55
  4. Step 4: Simplify right side
    126,579.96x = 9,060,867,948.77
  5. Step 5: Solve for x
    x = 9,060,867,948.77/126,579.96
  6. Step 6: Final answer
    x = 71,582.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.