Home / 75,050.48-103,579.80-43,218.56

Finding the Fourth Proportional to 75,050.48, 103,579.80 and 43,218.56

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Solution

The fourth proportional to 75,050.48, 103,579.80 and 43,218.56 is: 59,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,050.48 : 103,579.80 = 43,218.56 : x
  2. Step 2: Convert to fraction form
    75,050.48/103,579.80 = 43,218.56/x
  3. Step 3: Cross multiply
    75,050.48x = 103,579.80 × 43,218.56
  4. Step 4: Simplify right side
    75,050.48x = 4,476,569,801.09
  5. Step 5: Solve for x
    x = 4,476,569,801.09/75,050.48
  6. Step 6: Final answer
    x = 59,647.45

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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.