Home / 51,765.16-71,439.78-29,106.76

Finding the Fourth Proportional to 51,765.16, 71,439.78 and 29,106.76

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Solution

The fourth proportional to 51,765.16, 71,439.78 and 29,106.76 is: 40,169.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,765.16 : 71,439.78 = 29,106.76 : x
  2. Step 2: Convert to fraction form
    51,765.16/71,439.78 = 29,106.76/x
  3. Step 3: Cross multiply
    51,765.16x = 71,439.78 × 29,106.76
  4. Step 4: Simplify right side
    51,765.16x = 2,079,380,530.91
  5. Step 5: Solve for x
    x = 2,079,380,530.91/51,765.16
  6. Step 6: Final answer
    x = 40,169.50

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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.