Home / 87,913.45-131,868.35-21,353.93

Finding the Fourth Proportional to 87,913.45, 131,868.35 and 21,353.93

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Solution

The fourth proportional to 87,913.45, 131,868.35 and 21,353.93 is: 32,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,913.45 : 131,868.35 = 21,353.93 : x
  2. Step 2: Convert to fraction form
    87,913.45/131,868.35 = 21,353.93/x
  3. Step 3: Cross multiply
    87,913.45x = 131,868.35 × 21,353.93
  4. Step 4: Simplify right side
    87,913.45x = 2,815,907,443.70
  5. Step 5: Solve for x
    x = 2,815,907,443.70/87,913.45
  6. Step 6: Final answer
    x = 32,030.45

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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.