Home / 81,539.14-122,344.08-44,125.51

Finding the Fourth Proportional to 81,539.14, 122,344.08 and 44,125.51

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Solution

The fourth proportional to 81,539.14, 122,344.08 and 44,125.51 is: 66,207.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,539.14 : 122,344.08 = 44,125.51 : x
  2. Step 2: Convert to fraction form
    81,539.14/122,344.08 = 44,125.51/x
  3. Step 3: Cross multiply
    81,539.14x = 122,344.08 × 44,125.51
  4. Step 4: Simplify right side
    81,539.14x = 5,398,494,925.48
  5. Step 5: Solve for x
    x = 5,398,494,925.48/81,539.14
  6. Step 6: Final answer
    x = 66,207.41

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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.