Home / 84,831.09-117,117.81-53,043.18

Finding the Fourth Proportional to 84,831.09, 117,117.81 and 53,043.18

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Solution

The fourth proportional to 84,831.09, 117,117.81 and 53,043.18 is: 73,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,831.09 : 117,117.81 = 53,043.18 : x
  2. Step 2: Convert to fraction form
    84,831.09/117,117.81 = 53,043.18/x
  3. Step 3: Cross multiply
    84,831.09x = 117,117.81 × 53,043.18
  4. Step 4: Simplify right side
    84,831.09x = 6,212,301,077.04
  5. Step 5: Solve for x
    x = 6,212,301,077.04/84,831.09
  6. Step 6: Final answer
    x = 73,231.42

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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.