Home / 85,076.52-117,209.04-61,161.84

Finding the Fourth Proportional to 85,076.52, 117,209.04 and 61,161.84

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Solution

The fourth proportional to 85,076.52, 117,209.04 and 61,161.84 is: 84,262.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,076.52 : 117,209.04 = 61,161.84 : x
  2. Step 2: Convert to fraction form
    85,076.52/117,209.04 = 61,161.84/x
  3. Step 3: Cross multiply
    85,076.52x = 117,209.04 × 61,161.84
  4. Step 4: Simplify right side
    85,076.52x = 7,168,720,551.03
  5. Step 5: Solve for x
    x = 7,168,720,551.03/85,076.52
  6. Step 6: Final answer
    x = 84,262.03

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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.