Home / 86,831.55-119,851.11-51,033.06

Finding the Fourth Proportional to 86,831.55, 119,851.11 and 51,033.06

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Solution

The fourth proportional to 86,831.55, 119,851.11 and 51,033.06 is: 70,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,831.55 : 119,851.11 = 51,033.06 : x
  2. Step 2: Convert to fraction form
    86,831.55/119,851.11 = 51,033.06/x
  3. Step 3: Cross multiply
    86,831.55x = 119,851.11 × 51,033.06
  4. Step 4: Simplify right side
    86,831.55x = 6,116,368,887.70
  5. Step 5: Solve for x
    x = 6,116,368,887.70/86,831.55
  6. Step 6: Final answer
    x = 70,439.48

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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.