Home / 91,863.04-126,831.36-57,922.56

Finding the Fourth Proportional to 91,863.04, 126,831.36 and 57,922.56

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Solution

The fourth proportional to 91,863.04, 126,831.36 and 57,922.56 is: 79,971.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,863.04 : 126,831.36 = 57,922.56 : x
  2. Step 2: Convert to fraction form
    91,863.04/126,831.36 = 57,922.56/x
  3. Step 3: Cross multiply
    91,863.04x = 126,831.36 × 57,922.56
  4. Step 4: Simplify right side
    91,863.04x = 7,346,397,059.48
  5. Step 5: Solve for x
    x = 7,346,397,059.48/91,863.04
  6. Step 6: Final answer
    x = 79,971.19

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1.5x scale

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.