Home / 89,306.04-133,865.52-30,121.32

Finding the Fourth Proportional to 89,306.04, 133,865.52 and 30,121.32

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Solution

The fourth proportional to 89,306.04, 133,865.52 and 30,121.32 is: 45,150.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,306.04 : 133,865.52 = 30,121.32 : x
  2. Step 2: Convert to fraction form
    89,306.04/133,865.52 = 30,121.32/x
  3. Step 3: Cross multiply
    89,306.04x = 133,865.52 × 30,121.32
  4. Step 4: Simplify right side
    89,306.04x = 4,032,206,164.89
  5. Step 5: Solve for x
    x = 4,032,206,164.89/89,306.04
  6. Step 6: Final answer
    x = 45,150.43

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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.