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Finding the Fourth Proportional to 84,806.40, 117,015.84 and 54,544.32

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Solution

The fourth proportional to 84,806.40, 117,015.84 and 54,544.32 is: 75,260.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,806.40 : 117,015.84 = 54,544.32 : x
  2. Step 2: Convert to fraction form
    84,806.40/117,015.84 = 54,544.32/x
  3. Step 3: Cross multiply
    84,806.40x = 117,015.84 × 54,544.32
  4. Step 4: Simplify right side
    84,806.40x = 6,382,549,422.03
  5. Step 5: Solve for x
    x = 6,382,549,422.03/84,806.40
  6. Step 6: Final answer
    x = 75,260.23

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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.