Home / 75,185.10-103,766.49-43,347.78

Finding the Fourth Proportional to 75,185.10, 103,766.49 and 43,347.78

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Solution

The fourth proportional to 75,185.10, 103,766.49 and 43,347.78 is: 59,826.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,185.10 : 103,766.49 = 43,347.78 : x
  2. Step 2: Convert to fraction form
    75,185.10/103,766.49 = 43,347.78/x
  3. Step 3: Cross multiply
    75,185.10x = 103,766.49 × 43,347.78
  4. Step 4: Simplify right side
    75,185.10x = 4,498,046,979.89
  5. Step 5: Solve for x
    x = 4,498,046,979.89/75,185.10
  6. Step 6: Final answer
    x = 59,826.31

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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.