Home / 84,858.39-117,008.57-54,191.18

Finding the Fourth Proportional to 84,858.39, 117,008.57 and 54,191.18

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Solution

The fourth proportional to 84,858.39, 117,008.57 and 54,191.18 is: 74,722.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,858.39 : 117,008.57 = 54,191.18 : x
  2. Step 2: Convert to fraction form
    84,858.39/117,008.57 = 54,191.18/x
  3. Step 3: Cross multiply
    84,858.39x = 117,008.57 × 54,191.18
  4. Step 4: Simplify right side
    84,858.39x = 6,340,832,906.41
  5. Step 5: Solve for x
    x = 6,340,832,906.41/84,858.39
  6. Step 6: Final answer
    x = 74,722.52

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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.