Home / 81,554.19-112,537.22-45,737.28

Finding the Fourth Proportional to 81,554.19, 112,537.22 and 45,737.28

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Solution

The fourth proportional to 81,554.19, 112,537.22 and 45,737.28 is: 63,113.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,554.19 : 112,537.22 = 45,737.28 : x
  2. Step 2: Convert to fraction form
    81,554.19/112,537.22 = 45,737.28/x
  3. Step 3: Cross multiply
    81,554.19x = 112,537.22 × 45,737.28
  4. Step 4: Simplify right side
    81,554.19x = 5,147,146,341.56
  5. Step 5: Solve for x
    x = 5,147,146,341.56/81,554.19
  6. Step 6: Final answer
    x = 63,113.21

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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.