Home / 81,107.83-121,661.68-59,061.45

Finding the Fourth Proportional to 81,107.83, 121,661.68 and 59,061.45

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Solution

The fourth proportional to 81,107.83, 121,661.68 and 59,061.45 is: 88,592.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,107.83 : 121,661.68 = 59,061.45 : x
  2. Step 2: Convert to fraction form
    81,107.83/121,661.68 = 59,061.45/x
  3. Step 3: Cross multiply
    81,107.83x = 121,661.68 × 59,061.45
  4. Step 4: Simplify right side
    81,107.83x = 7,185,515,230.24
  5. Step 5: Solve for x
    x = 7,185,515,230.24/81,107.83
  6. Step 6: Final answer
    x = 88,592.13

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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.