Home / 89,128.20-133,767.90-36,575.40

Finding the Fourth Proportional to 89,128.20, 133,767.90 and 36,575.40

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Solution

The fourth proportional to 89,128.20, 133,767.90 and 36,575.40 is: 54,894.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,128.20 : 133,767.90 = 36,575.40 : x
  2. Step 2: Convert to fraction form
    89,128.20/133,767.90 = 36,575.40/x
  3. Step 3: Cross multiply
    89,128.20x = 133,767.90 × 36,575.40
  4. Step 4: Simplify right side
    89,128.20x = 4,892,614,449.66
  5. Step 5: Solve for x
    x = 4,892,614,449.66/89,128.20
  6. Step 6: Final answer
    x = 54,894.12

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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.