Home / 89,513.24-123,518.70-51,780.44

Finding the Fourth Proportional to 89,513.24, 123,518.70 and 51,780.44

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Solution

The fourth proportional to 89,513.24, 123,518.70 and 51,780.44 is: 71,451.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,513.24 : 123,518.70 = 51,780.44 : x
  2. Step 2: Convert to fraction form
    89,513.24/123,518.70 = 51,780.44/x
  3. Step 3: Cross multiply
    89,513.24x = 123,518.70 × 51,780.44
  4. Step 4: Simplify right side
    89,513.24x = 6,395,852,634.23
  5. Step 5: Solve for x
    x = 6,395,852,634.23/89,513.24
  6. Step 6: Final answer
    x = 71,451.47

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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.