Home / 84,975.75-117,186.08-61,984.71

Finding the Fourth Proportional to 84,975.75, 117,186.08 and 61,984.71

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Solution

The fourth proportional to 84,975.75, 117,186.08 and 61,984.71 is: 85,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,975.75 : 117,186.08 = 61,984.71 : x
  2. Step 2: Convert to fraction form
    84,975.75/117,186.08 = 61,984.71/x
  3. Step 3: Cross multiply
    84,975.75x = 117,186.08 × 61,984.71
  4. Step 4: Simplify right side
    84,975.75x = 7,263,744,874.91
  5. Step 5: Solve for x
    x = 7,263,744,874.91/84,975.75
  6. Step 6: Final answer
    x = 85,480.21

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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.