Home / 81,962.56-113,116.80-50,152.60

Finding the Fourth Proportional to 81,962.56, 113,116.80 and 50,152.60

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Solution

The fourth proportional to 81,962.56, 113,116.80 and 50,152.60 is: 69,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,962.56 : 113,116.80 = 50,152.60 : x
  2. Step 2: Convert to fraction form
    81,962.56/113,116.80 = 50,152.60/x
  3. Step 3: Cross multiply
    81,962.56x = 113,116.80 × 50,152.60
  4. Step 4: Simplify right side
    81,962.56x = 5,673,101,623.68
  5. Step 5: Solve for x
    x = 5,673,101,623.68/81,962.56
  6. Step 6: Final answer
    x = 69,215.77

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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.