Home / 89,128.72-133,693.26-36,528.76

Finding the Fourth Proportional to 89,128.72, 133,693.26 and 36,528.76

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Solution

The fourth proportional to 89,128.72, 133,693.26 and 36,528.76 is: 54,793.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,128.72 : 133,693.26 = 36,528.76 : x
  2. Step 2: Convert to fraction form
    89,128.72/133,693.26 = 36,528.76/x
  3. Step 3: Cross multiply
    89,128.72x = 133,693.26 × 36,528.76
  4. Step 4: Simplify right side
    89,128.72x = 4,883,649,008.16
  5. Step 5: Solve for x
    x = 4,883,649,008.16/89,128.72
  6. Step 6: Final answer
    x = 54,793.21

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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.