Home / 83,771.04-115,610.64-47,972.32

Finding the Fourth Proportional to 83,771.04, 115,610.64 and 47,972.32

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Solution

The fourth proportional to 83,771.04, 115,610.64 and 47,972.32 is: 66,205.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,771.04 : 115,610.64 = 47,972.32 : x
  2. Step 2: Convert to fraction form
    83,771.04/115,610.64 = 47,972.32/x
  3. Step 3: Cross multiply
    83,771.04x = 115,610.64 × 47,972.32
  4. Step 4: Simplify right side
    83,771.04x = 5,546,110,617.48
  5. Step 5: Solve for x
    x = 5,546,110,617.48/83,771.04
  6. Step 6: Final answer
    x = 66,205.58

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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.