Home / 86,537.78-129,828.59-26,569.31

Finding the Fourth Proportional to 86,537.78, 129,828.59 and 26,569.31

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Solution

The fourth proportional to 86,537.78, 129,828.59 and 26,569.31 is: 39,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,537.78 : 129,828.59 = 26,569.31 : x
  2. Step 2: Convert to fraction form
    86,537.78/129,828.59 = 26,569.31/x
  3. Step 3: Cross multiply
    86,537.78x = 129,828.59 × 26,569.31
  4. Step 4: Simplify right side
    86,537.78x = 3,449,455,921.73
  5. Step 5: Solve for x
    x = 3,449,455,921.73/86,537.78
  6. Step 6: Final answer
    x = 39,860.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.