Home / 55,154.74-82,659.40-21,856.64

Finding the Fourth Proportional to 55,154.74, 82,659.40 and 21,856.64

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Solution

The fourth proportional to 55,154.74, 82,659.40 and 21,856.64 is: 32,756.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,154.74 : 82,659.40 = 21,856.64 : x
  2. Step 2: Convert to fraction form
    55,154.74/82,659.40 = 21,856.64/x
  3. Step 3: Cross multiply
    55,154.74x = 82,659.40 × 21,856.64
  4. Step 4: Simplify right side
    55,154.74x = 1,806,656,748.42
  5. Step 5: Solve for x
    x = 1,806,656,748.42/55,154.74
  6. Step 6: Final answer
    x = 32,756.15

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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.