Home / 75,118.37-103,663.12-43,287.20

Finding the Fourth Proportional to 75,118.37, 103,663.12 and 43,287.20

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Solution

The fourth proportional to 75,118.37, 103,663.12 and 43,287.20 is: 59,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,118.37 : 103,663.12 = 43,287.20 : x
  2. Step 2: Convert to fraction form
    75,118.37/103,663.12 = 43,287.20/x
  3. Step 3: Cross multiply
    75,118.37x = 103,663.12 × 43,287.20
  4. Step 4: Simplify right side
    75,118.37x = 4,487,286,208.06
  5. Step 5: Solve for x
    x = 4,487,286,208.06/75,118.37
  6. Step 6: Final answer
    x = 59,736.20

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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.