Home / 89,629.24-123,685.77-51,387.52

Finding the Fourth Proportional to 89,629.24, 123,685.77 and 51,387.52

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Solution

The fourth proportional to 89,629.24, 123,685.77 and 51,387.52 is: 70,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,629.24 : 123,685.77 = 51,387.52 : x
  2. Step 2: Convert to fraction form
    89,629.24/123,685.77 = 51,387.52/x
  3. Step 3: Cross multiply
    89,629.24x = 123,685.77 × 51,387.52
  4. Step 4: Simplify right side
    89,629.24x = 6,355,904,979.59
  5. Step 5: Solve for x
    x = 6,355,904,979.59/89,629.24
  6. Step 6: Final answer
    x = 70,913.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.