Home / 75,073.37-103,638.75-43,236.11

Finding the Fourth Proportional to 75,073.37, 103,638.75 and 43,236.11

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Solution

The fourth proportional to 75,073.37, 103,638.75 and 43,236.11 is: 59,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,073.37 : 103,638.75 = 43,236.11 : x
  2. Step 2: Convert to fraction form
    75,073.37/103,638.75 = 43,236.11/x
  3. Step 3: Cross multiply
    75,073.37x = 103,638.75 × 43,236.11
  4. Step 4: Simplify right side
    75,073.37x = 4,480,936,395.26
  5. Step 5: Solve for x
    x = 4,480,936,395.26/75,073.37
  6. Step 6: Final answer
    x = 59,687.43

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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.