Home / 81,448.43-112,467.29-61,270.34

Finding the Fourth Proportional to 81,448.43, 112,467.29 and 61,270.34

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Solution

The fourth proportional to 81,448.43, 112,467.29 and 61,270.34 is: 84,604.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,448.43 : 112,467.29 = 61,270.34 : x
  2. Step 2: Convert to fraction form
    81,448.43/112,467.29 = 61,270.34/x
  3. Step 3: Cross multiply
    81,448.43x = 112,467.29 × 61,270.34
  4. Step 4: Simplify right side
    81,448.43x = 6,890,908,228.49
  5. Step 5: Solve for x
    x = 6,890,908,228.49/81,448.43
  6. Step 6: Final answer
    x = 84,604.56

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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.