Home / 81,926.04-113,074.14-47,938.20

Finding the Fourth Proportional to 81,926.04, 113,074.14 and 47,938.20

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Solution

The fourth proportional to 81,926.04, 113,074.14 and 47,938.20 is: 66,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,926.04 : 113,074.14 = 47,938.20 : x
  2. Step 2: Convert to fraction form
    81,926.04/113,074.14 = 47,938.20/x
  3. Step 3: Cross multiply
    81,926.04x = 113,074.14 × 47,938.20
  4. Step 4: Simplify right side
    81,926.04x = 5,420,570,738.15
  5. Step 5: Solve for x
    x = 5,420,570,738.15/81,926.04
  6. Step 6: Final answer
    x = 66,164.20

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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.