Home / 81,814.05-112,901.45-53,519.13

Finding the Fourth Proportional to 81,814.05, 112,901.45 and 53,519.13

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Solution

The fourth proportional to 81,814.05, 112,901.45 and 53,519.13 is: 73,855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,814.05 : 112,901.45 = 53,519.13 : x
  2. Step 2: Convert to fraction form
    81,814.05/112,901.45 = 53,519.13/x
  3. Step 3: Cross multiply
    81,814.05x = 112,901.45 × 53,519.13
  4. Step 4: Simplify right side
    81,814.05x = 6,042,387,112.14
  5. Step 5: Solve for x
    x = 6,042,387,112.14/81,814.05
  6. Step 6: Final answer
    x = 73,855.13

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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.