Home / 81,040.84-121,597.62-51,450.76

Finding the Fourth Proportional to 81,040.84, 121,597.62 and 51,450.76

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Solution

The fourth proportional to 81,040.84, 121,597.62 and 51,450.76 is: 77,199.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,040.84 : 121,597.62 = 51,450.76 : x
  2. Step 2: Convert to fraction form
    81,040.84/121,597.62 = 51,450.76/x
  3. Step 3: Cross multiply
    81,040.84x = 121,597.62 × 51,450.76
  4. Step 4: Simplify right side
    81,040.84x = 6,256,289,963.19
  5. Step 5: Solve for x
    x = 6,256,289,963.19/81,040.84
  6. Step 6: Final answer
    x = 77,199.22

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1.5x scale

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.