Home / 55,339.62-83,009.34-20,281.98

Finding the Fourth Proportional to 55,339.62, 83,009.34 and 20,281.98

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Solution

The fourth proportional to 55,339.62, 83,009.34 and 20,281.98 is: 30,422.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,339.62 : 83,009.34 = 20,281.98 : x
  2. Step 2: Convert to fraction form
    55,339.62/83,009.34 = 20,281.98/x
  3. Step 3: Cross multiply
    55,339.62x = 83,009.34 × 20,281.98
  4. Step 4: Simplify right side
    55,339.62x = 1,683,593,773.69
  5. Step 5: Solve for x
    x = 1,683,593,773.69/55,339.62
  6. Step 6: Final answer
    x = 30,422.94

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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.