Home / 81,989.07-113,173.21-48,008.49

Finding the Fourth Proportional to 81,989.07, 113,173.21 and 48,008.49

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Solution

The fourth proportional to 81,989.07, 113,173.21 and 48,008.49 is: 66,268.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,989.07 : 113,173.21 = 48,008.49 : x
  2. Step 2: Convert to fraction form
    81,989.07/113,173.21 = 48,008.49/x
  3. Step 3: Cross multiply
    81,989.07x = 113,173.21 × 48,008.49
  4. Step 4: Simplify right side
    81,989.07x = 5,433,274,920.55
  5. Step 5: Solve for x
    x = 5,433,274,920.55/81,989.07
  6. Step 6: Final answer
    x = 66,268.28

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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.