Home / 91,716.20-126,569.66-55,412.60

Finding the Fourth Proportional to 91,716.20, 126,569.66 and 55,412.60

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Solution

The fourth proportional to 91,716.20, 126,569.66 and 55,412.60 is: 76,470.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,716.20 : 126,569.66 = 55,412.60 : x
  2. Step 2: Convert to fraction form
    91,716.20/126,569.66 = 55,412.60/x
  3. Step 3: Cross multiply
    91,716.20x = 126,569.66 × 55,412.60
  4. Step 4: Simplify right side
    91,716.20x = 7,013,554,122.31
  5. Step 5: Solve for x
    x = 7,013,554,122.31/91,716.20
  6. Step 6: Final answer
    x = 76,470.18

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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.