Home / 89,239.57-133,680.83-53,681.28

Finding the Fourth Proportional to 89,239.57, 133,680.83 and 53,681.28

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Solution

The fourth proportional to 89,239.57, 133,680.83 and 53,681.28 is: 80,414.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,239.57 : 133,680.83 = 53,681.28 : x
  2. Step 2: Convert to fraction form
    89,239.57/133,680.83 = 53,681.28/x
  3. Step 3: Cross multiply
    89,239.57x = 133,680.83 × 53,681.28
  4. Step 4: Simplify right side
    89,239.57x = 7,176,158,350.06
  5. Step 5: Solve for x
    x = 7,176,158,350.06/89,239.57
  6. Step 6: Final answer
    x = 80,414.53

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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.