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Finding the Fourth Proportional to 75,611.56, 104,343.12 and 41,619.32

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Solution

The fourth proportional to 75,611.56, 104,343.12 and 41,619.32 is: 57,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,611.56 : 104,343.12 = 41,619.32 : x
  2. Step 2: Convert to fraction form
    75,611.56/104,343.12 = 41,619.32/x
  3. Step 3: Cross multiply
    75,611.56x = 104,343.12 × 41,619.32
  4. Step 4: Simplify right side
    75,611.56x = 4,342,689,701.08
  5. Step 5: Solve for x
    x = 4,342,689,701.08/75,611.56
  6. Step 6: Final answer
    x = 57,434.20

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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.