Home / 89,236.74-133,812.40-51,807.16

Finding the Fourth Proportional to 89,236.74, 133,812.40 and 51,807.16

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Solution

The fourth proportional to 89,236.74, 133,812.40 and 51,807.16 is: 77,685.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,236.74 : 133,812.40 = 51,807.16 : x
  2. Step 2: Convert to fraction form
    89,236.74/133,812.40 = 51,807.16/x
  3. Step 3: Cross multiply
    89,236.74x = 133,812.40 × 51,807.16
  4. Step 4: Simplify right side
    89,236.74x = 6,932,440,416.78
  5. Step 5: Solve for x
    x = 6,932,440,416.78/89,236.74
  6. Step 6: Final answer
    x = 77,685.94

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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.