Home / 91,812.96-126,748.80-57,831.84

Finding the Fourth Proportional to 91,812.96, 126,748.80 and 57,831.84

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Solution

The fourth proportional to 91,812.96, 126,748.80 and 57,831.84 is: 79,837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,812.96 : 126,748.80 = 57,831.84 : x
  2. Step 2: Convert to fraction form
    91,812.96/126,748.80 = 57,831.84/x
  3. Step 3: Cross multiply
    91,812.96x = 126,748.80 × 57,831.84
  4. Step 4: Simplify right side
    91,812.96x = 7,330,116,321.79
  5. Step 5: Solve for x
    x = 7,330,116,321.79/91,812.96
  6. Step 6: Final answer
    x = 79,837.49

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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.