Home / 55,216.42-82,838.40-25,655.20

Finding the Fourth Proportional to 55,216.42, 82,838.40 and 25,655.20

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Solution

The fourth proportional to 55,216.42, 82,838.40 and 25,655.20 is: 38,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,216.42 : 82,838.40 = 25,655.20 : x
  2. Step 2: Convert to fraction form
    55,216.42/82,838.40 = 25,655.20/x
  3. Step 3: Cross multiply
    55,216.42x = 82,838.40 × 25,655.20
  4. Step 4: Simplify right side
    55,216.42x = 2,125,235,719.68
  5. Step 5: Solve for x
    x = 2,125,235,719.68/55,216.42
  6. Step 6: Final answer
    x = 38,489.20

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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.