Home / 84,917.84-117,189-49,104.40

Finding the Fourth Proportional to 84,917.84, 117,189 and 49,104.40

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Solution

The fourth proportional to 84,917.84, 117,189 and 49,104.40 is: 67,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,917.84 : 117,189 = 49,104.40 : x
  2. Step 2: Convert to fraction form
    84,917.84/117,189 = 49,104.40/x
  3. Step 3: Cross multiply
    84,917.84x = 117,189 × 49,104.40
  4. Step 4: Simplify right side
    84,917.84x = 5,754,495,531.60
  5. Step 5: Solve for x
    x = 5,754,495,531.60/84,917.84
  6. Step 6: Final answer
    x = 67,765.45

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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.