Home / 81,957.06-113,109.21-50,147.10

Finding the Fourth Proportional to 81,957.06, 113,109.21 and 50,147.10

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Solution

The fourth proportional to 81,957.06, 113,109.21 and 50,147.10 is: 69,208.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,957.06 : 113,109.21 = 50,147.10 : x
  2. Step 2: Convert to fraction form
    81,957.06/113,109.21 = 50,147.10/x
  3. Step 3: Cross multiply
    81,957.06x = 113,109.21 × 50,147.10
  4. Step 4: Simplify right side
    81,957.06x = 5,672,098,864.79
  5. Step 5: Solve for x
    x = 5,672,098,864.79/81,957.06
  6. Step 6: Final answer
    x = 69,208.18

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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.