Home / 89,455.39-123,448.70-49,173.28

Finding the Fourth Proportional to 89,455.39, 123,448.70 and 49,173.28

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Solution

The fourth proportional to 89,455.39, 123,448.70 and 49,173.28 is: 67,859.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,455.39 : 123,448.70 = 49,173.28 : x
  2. Step 2: Convert to fraction form
    89,455.39/123,448.70 = 49,173.28/x
  3. Step 3: Cross multiply
    89,455.39x = 123,448.70 × 49,173.28
  4. Step 4: Simplify right side
    89,455.39x = 6,070,376,936.25
  5. Step 5: Solve for x
    x = 6,070,376,936.25/89,455.39
  6. Step 6: Final answer
    x = 67,859.27

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1.5x scale

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.