Home / 81,967.04-113,073.72-50,080.40

Finding the Fourth Proportional to 81,967.04, 113,073.72 and 50,080.40

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Solution

The fourth proportional to 81,967.04, 113,073.72 and 50,080.40 is: 69,086.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,967.04 : 113,073.72 = 50,080.40 : x
  2. Step 2: Convert to fraction form
    81,967.04/113,073.72 = 50,080.40/x
  3. Step 3: Cross multiply
    81,967.04x = 113,073.72 × 50,080.40
  4. Step 4: Simplify right side
    81,967.04x = 5,662,777,127.09
  5. Step 5: Solve for x
    x = 5,662,777,127.09/81,967.04
  6. Step 6: Final answer
    x = 69,086.03

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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.