Home / 75,639.25-104,382.17-43,818.40

Finding the Fourth Proportional to 75,639.25, 104,382.17 and 43,818.40

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Solution

The fourth proportional to 75,639.25, 104,382.17 and 43,818.40 is: 60,469.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,639.25 : 104,382.17 = 43,818.40 : x
  2. Step 2: Convert to fraction form
    75,639.25/104,382.17 = 43,818.40/x
  3. Step 3: Cross multiply
    75,639.25x = 104,382.17 × 43,818.40
  4. Step 4: Simplify right side
    75,639.25x = 4,573,859,458.84
  5. Step 5: Solve for x
    x = 4,573,859,458.84/75,639.25
  6. Step 6: Final answer
    x = 60,469.39

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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.