Home / 81,553.19-112,535.84-45,736.28

Finding the Fourth Proportional to 81,553.19, 112,535.84 and 45,736.28

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Solution

The fourth proportional to 81,553.19, 112,535.84 and 45,736.28 is: 63,111.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,553.19 : 112,535.84 = 45,736.28 : x
  2. Step 2: Convert to fraction form
    81,553.19/112,535.84 = 45,736.28/x
  3. Step 3: Cross multiply
    81,553.19x = 112,535.84 × 45,736.28
  4. Step 4: Simplify right side
    81,553.19x = 5,146,971,201.02
  5. Step 5: Solve for x
    x = 5,146,971,201.02/81,553.19
  6. Step 6: Final answer
    x = 63,111.83

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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.