Home / 89,270.40-133,812.16-30,085.60

Finding the Fourth Proportional to 89,270.40, 133,812.16 and 30,085.60

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Solution

The fourth proportional to 89,270.40, 133,812.16 and 30,085.60 is: 45,096.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,270.40 : 133,812.16 = 30,085.60 : x
  2. Step 2: Convert to fraction form
    89,270.40/133,812.16 = 30,085.60/x
  3. Step 3: Cross multiply
    89,270.40x = 133,812.16 × 30,085.60
  4. Step 4: Simplify right side
    89,270.40x = 4,025,819,120.90
  5. Step 5: Solve for x
    x = 4,025,819,120.90/89,270.40
  6. Step 6: Final answer
    x = 45,096.91

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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.