Home / 75,270.80-103,887.24-43,435.28

Finding the Fourth Proportional to 75,270.80, 103,887.24 and 43,435.28

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Solution

The fourth proportional to 75,270.80, 103,887.24 and 43,435.28 is: 59,948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,270.80 : 103,887.24 = 43,435.28 : x
  2. Step 2: Convert to fraction form
    75,270.80/103,887.24 = 43,435.28/x
  3. Step 3: Cross multiply
    75,270.80x = 103,887.24 × 43,435.28
  4. Step 4: Simplify right side
    75,270.80x = 4,512,371,357.83
  5. Step 5: Solve for x
    x = 4,512,371,357.83/75,270.80
  6. Step 6: Final answer
    x = 59,948.50

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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.