Home / 91,076.70-125,783.86-69,334.51

Finding the Fourth Proportional to 91,076.70, 125,783.86 and 69,334.51

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Solution

The fourth proportional to 91,076.70, 125,783.86 and 69,334.51 is: 95,756.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,076.70 : 125,783.86 = 69,334.51 : x
  2. Step 2: Convert to fraction form
    91,076.70/125,783.86 = 69,334.51/x
  3. Step 3: Cross multiply
    91,076.70x = 125,783.86 × 69,334.51
  4. Step 4: Simplify right side
    91,076.70x = 8,721,162,018.30
  5. Step 5: Solve for x
    x = 8,721,162,018.30/91,076.70
  6. Step 6: Final answer
    x = 95,756.23

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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.