Home / 91,527.75-126,301.37-55,713.78

Finding the Fourth Proportional to 91,527.75, 126,301.37 and 55,713.78

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Solution

The fourth proportional to 91,527.75, 126,301.37 and 55,713.78 is: 76,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,527.75 : 126,301.37 = 55,713.78 : x
  2. Step 2: Convert to fraction form
    91,527.75/126,301.37 = 55,713.78/x
  3. Step 3: Cross multiply
    91,527.75x = 126,301.37 × 55,713.78
  4. Step 4: Simplify right side
    91,527.75x = 7,036,726,463.31
  5. Step 5: Solve for x
    x = 7,036,726,463.31/91,527.75
  6. Step 6: Final answer
    x = 76,880.80

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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.