Home / 96,787.87-145,176.64-30,220.38

Finding the Fourth Proportional to 96,787.87, 145,176.64 and 30,220.38

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Solution

The fourth proportional to 96,787.87, 145,176.64 and 30,220.38 is: 45,328.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,787.87 : 145,176.64 = 30,220.38 : x
  2. Step 2: Convert to fraction form
    96,787.87/145,176.64 = 30,220.38/x
  3. Step 3: Cross multiply
    96,787.87x = 145,176.64 × 30,220.38
  4. Step 4: Simplify right side
    96,787.87x = 4,387,293,152.37
  5. Step 5: Solve for x
    x = 4,387,293,152.37/96,787.87
  6. Step 6: Final answer
    x = 45,328.96

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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.