Home / 77,511.13-106,961.89-43,519

Finding the Fourth Proportional to 77,511.13, 106,961.89 and 43,519

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Solution

The fourth proportional to 77,511.13, 106,961.89 and 43,519 is: 60,054.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,511.13 : 106,961.89 = 43,519 : x
  2. Step 2: Convert to fraction form
    77,511.13/106,961.89 = 43,519/x
  3. Step 3: Cross multiply
    77,511.13x = 106,961.89 × 43,519
  4. Step 4: Simplify right side
    77,511.13x = 4,654,874,490.91
  5. Step 5: Solve for x
    x = 4,654,874,490.91/77,511.13
  6. Step 6: Final answer
    x = 60,054.27

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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.