Home / 88,564.24-123,057.36-87,639.76

Finding the Fourth Proportional to 88,564.24, 123,057.36 and 87,639.76

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Solution

The fourth proportional to 88,564.24, 123,057.36 and 87,639.76 is: 121,772.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,564.24 : 123,057.36 = 87,639.76 : x
  2. Step 2: Convert to fraction form
    88,564.24/123,057.36 = 87,639.76/x
  3. Step 3: Cross multiply
    88,564.24x = 123,057.36 × 87,639.76
  4. Step 4: Simplify right side
    88,564.24x = 10,784,717,496.63
  5. Step 5: Solve for x
    x = 10,784,717,496.63/88,564.24
  6. Step 6: Final answer
    x = 121,772.82

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.