Home / 55,123.24-82,671.18-21,831.88

Finding the Fourth Proportional to 55,123.24, 82,671.18 and 21,831.88

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Solution

The fourth proportional to 55,123.24, 82,671.18 and 21,831.88 is: 32,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,123.24 : 82,671.18 = 21,831.88 : x
  2. Step 2: Convert to fraction form
    55,123.24/82,671.18 = 21,831.88/x
  3. Step 3: Cross multiply
    55,123.24x = 82,671.18 × 21,831.88
  4. Step 4: Simplify right side
    55,123.24x = 1,804,867,281.22
  5. Step 5: Solve for x
    x = 1,804,867,281.22/55,123.24
  6. Step 6: Final answer
    x = 32,742.40

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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.