Home / 55,322.40-82,861.68-45,725.76

Finding the Fourth Proportional to 55,322.40, 82,861.68 and 45,725.76

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Solution

The fourth proportional to 55,322.40, 82,861.68 and 45,725.76 is: 68,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,322.40 : 82,861.68 = 45,725.76 : x
  2. Step 2: Convert to fraction form
    55,322.40/82,861.68 = 45,725.76/x
  3. Step 3: Cross multiply
    55,322.40x = 82,861.68 × 45,725.76
  4. Step 4: Simplify right side
    55,322.40x = 3,788,913,292.88
  5. Step 5: Solve for x
    x = 3,788,913,292.88/55,322.40
  6. Step 6: Final answer
    x = 68,487.87

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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.