Home / 75,415.15-104,080.13-43,143.36

Finding the Fourth Proportional to 75,415.15, 104,080.13 and 43,143.36

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Solution

The fourth proportional to 75,415.15, 104,080.13 and 43,143.36 is: 59,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,415.15 : 104,080.13 = 43,143.36 : x
  2. Step 2: Convert to fraction form
    75,415.15/104,080.13 = 43,143.36/x
  3. Step 3: Cross multiply
    75,415.15x = 104,080.13 × 43,143.36
  4. Step 4: Simplify right side
    75,415.15x = 4,490,366,517.44
  5. Step 5: Solve for x
    x = 4,490,366,517.44/75,415.15
  6. Step 6: Final answer
    x = 59,541.97

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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.