Home / 81,164.16-111,987.32-47,152.44

Finding the Fourth Proportional to 81,164.16, 111,987.32 and 47,152.44

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Solution

The fourth proportional to 81,164.16, 111,987.32 and 47,152.44 is: 65,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,164.16 : 111,987.32 = 47,152.44 : x
  2. Step 2: Convert to fraction form
    81,164.16/111,987.32 = 47,152.44/x
  3. Step 3: Cross multiply
    81,164.16x = 111,987.32 × 47,152.44
  4. Step 4: Simplify right side
    81,164.16x = 5,280,475,387.06
  5. Step 5: Solve for x
    x = 5,280,475,387.06/81,164.16
  6. Step 6: Final answer
    x = 65,059.20

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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.