Home / 87,021.24-120,097.80-48,787.32

Finding the Fourth Proportional to 87,021.24, 120,097.80 and 48,787.32

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Solution

The fourth proportional to 87,021.24, 120,097.80 and 48,787.32 is: 67,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,021.24 : 120,097.80 = 48,787.32 : x
  2. Step 2: Convert to fraction form
    87,021.24/120,097.80 = 48,787.32/x
  3. Step 3: Cross multiply
    87,021.24x = 120,097.80 × 48,787.32
  4. Step 4: Simplify right side
    87,021.24x = 5,859,249,799.90
  5. Step 5: Solve for x
    x = 5,859,249,799.90/87,021.24
  6. Step 6: Final answer
    x = 67,331.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.