Home / 68,742.45-94,736.16-53,611.20

Finding the Fourth Proportional to 68,742.45, 94,736.16 and 53,611.20

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Solution

The fourth proportional to 68,742.45, 94,736.16 and 53,611.20 is: 73,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,742.45 : 94,736.16 = 53,611.20 : x
  2. Step 2: Convert to fraction form
    68,742.45/94,736.16 = 53,611.20/x
  3. Step 3: Cross multiply
    68,742.45x = 94,736.16 × 53,611.20
  4. Step 4: Simplify right side
    68,742.45x = 5,078,919,220.99
  5. Step 5: Solve for x
    x = 5,078,919,220.99/68,742.45
  6. Step 6: Final answer
    x = 73,883.30

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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.