Home / 81,170.34-121,767.12-25,015.20

Finding the Fourth Proportional to 81,170.34, 121,767.12 and 25,015.20

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Solution

The fourth proportional to 81,170.34, 121,767.12 and 25,015.20 is: 37,526.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,170.34 : 121,767.12 = 25,015.20 : x
  2. Step 2: Convert to fraction form
    81,170.34/121,767.12 = 25,015.20/x
  3. Step 3: Cross multiply
    81,170.34x = 121,767.12 × 25,015.20
  4. Step 4: Simplify right side
    81,170.34x = 3,046,028,860.22
  5. Step 5: Solve for x
    x = 3,046,028,860.22/81,170.34
  6. Step 6: Final answer
    x = 37,526.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.