Home / 86,161.08-129,241.80-23,831.76

Finding the Fourth Proportional to 86,161.08, 129,241.80 and 23,831.76

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Solution

The fourth proportional to 86,161.08, 129,241.80 and 23,831.76 is: 35,747.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,161.08 : 129,241.80 = 23,831.76 : x
  2. Step 2: Convert to fraction form
    86,161.08/129,241.80 = 23,831.76/x
  3. Step 3: Cross multiply
    86,161.08x = 129,241.80 × 23,831.76
  4. Step 4: Simplify right side
    86,161.08x = 3,080,059,559.57
  5. Step 5: Solve for x
    x = 3,080,059,559.57/86,161.08
  6. Step 6: Final answer
    x = 35,747.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.