Home / 98,831.72-136,387.85-53,509.73

Finding the Fourth Proportional to 98,831.72, 136,387.85 and 53,509.73

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Solution

The fourth proportional to 98,831.72, 136,387.85 and 53,509.73 is: 73,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,831.72 : 136,387.85 = 53,509.73 : x
  2. Step 2: Convert to fraction form
    98,831.72/136,387.85 = 53,509.73/x
  3. Step 3: Cross multiply
    98,831.72x = 136,387.85 × 53,509.73
  4. Step 4: Simplify right side
    98,831.72x = 7,298,077,028.78
  5. Step 5: Solve for x
    x = 7,298,077,028.78/98,831.72
  6. Step 6: Final answer
    x = 73,843.47

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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.