Home / 54,093.60-81,140.40-31,917.60

Finding the Fourth Proportional to 54,093.60, 81,140.40 and 31,917.60

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Solution

The fourth proportional to 54,093.60, 81,140.40 and 31,917.60 is: 47,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,093.60 : 81,140.40 = 31,917.60 : x
  2. Step 2: Convert to fraction form
    54,093.60/81,140.40 = 31,917.60/x
  3. Step 3: Cross multiply
    54,093.60x = 81,140.40 × 31,917.60
  4. Step 4: Simplify right side
    54,093.60x = 2,589,806,831.04
  5. Step 5: Solve for x
    x = 2,589,806,831.04/54,093.60
  6. Step 6: Final answer
    x = 47,876.40

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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.