Home / 81,987.24-113,203.02-50,199.48

Finding the Fourth Proportional to 81,987.24, 113,203.02 and 50,199.48

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Solution

The fourth proportional to 81,987.24, 113,203.02 and 50,199.48 is: 69,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,987.24 : 113,203.02 = 50,199.48 : x
  2. Step 2: Convert to fraction form
    81,987.24/113,203.02 = 50,199.48/x
  3. Step 3: Cross multiply
    81,987.24x = 113,203.02 × 50,199.48
  4. Step 4: Simplify right side
    81,987.24x = 5,682,732,738.43
  5. Step 5: Solve for x
    x = 5,682,732,738.43/81,987.24
  6. Step 6: Final answer
    x = 69,312.40

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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.