Home / 75,018.15-103,537.78-43,205.47

Finding the Fourth Proportional to 75,018.15, 103,537.78 and 43,205.47

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Solution

The fourth proportional to 75,018.15, 103,537.78 and 43,205.47 is: 59,630.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,018.15 : 103,537.78 = 43,205.47 : x
  2. Step 2: Convert to fraction form
    75,018.15/103,537.78 = 43,205.47/x
  3. Step 3: Cross multiply
    75,018.15x = 103,537.78 × 43,205.47
  4. Step 4: Simplify right side
    75,018.15x = 4,473,398,080.80
  5. Step 5: Solve for x
    x = 4,473,398,080.80/75,018.15
  6. Step 6: Final answer
    x = 59,630.88

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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.