Home / 89,057.28-133,721.28-55,983.36

Finding the Fourth Proportional to 89,057.28, 133,721.28 and 55,983.36

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Solution

The fourth proportional to 89,057.28, 133,721.28 and 55,983.36 is: 84,060.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,057.28 : 133,721.28 = 55,983.36 : x
  2. Step 2: Convert to fraction form
    89,057.28/133,721.28 = 55,983.36/x
  3. Step 3: Cross multiply
    89,057.28x = 133,721.28 × 55,983.36
  4. Step 4: Simplify right side
    89,057.28x = 7,486,166,557.90
  5. Step 5: Solve for x
    x = 7,486,166,557.90/89,057.28
  6. Step 6: Final answer
    x = 84,060.13

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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.