Home / 90,845.74-125,363.86-50,561.20

Finding the Fourth Proportional to 90,845.74, 125,363.86 and 50,561.20

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Solution

The fourth proportional to 90,845.74, 125,363.86 and 50,561.20 is: 69,772.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,845.74 : 125,363.86 = 50,561.20 : x
  2. Step 2: Convert to fraction form
    90,845.74/125,363.86 = 50,561.20/x
  3. Step 3: Cross multiply
    90,845.74x = 125,363.86 × 50,561.20
  4. Step 4: Simplify right side
    90,845.74x = 6,338,547,198.23
  5. Step 5: Solve for x
    x = 6,338,547,198.23/90,845.74
  6. Step 6: Final answer
    x = 69,772.64

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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.