Home / 48,787.35-73,179.30-20,689.32

Finding the Fourth Proportional to 48,787.35, 73,179.30 and 20,689.32

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Solution

The fourth proportional to 48,787.35, 73,179.30 and 20,689.32 is: 31,033.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,787.35 : 73,179.30 = 20,689.32 : x
  2. Step 2: Convert to fraction form
    48,787.35/73,179.30 = 20,689.32/x
  3. Step 3: Cross multiply
    48,787.35x = 73,179.30 × 20,689.32
  4. Step 4: Simplify right side
    48,787.35x = 1,514,029,955.08
  5. Step 5: Solve for x
    x = 1,514,029,955.08/48,787.35
  6. Step 6: Final answer
    x = 31,033.25

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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.