Home / 75,125.37-103,672.78-43,294.20

Finding the Fourth Proportional to 75,125.37, 103,672.78 and 43,294.20

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Solution

The fourth proportional to 75,125.37, 103,672.78 and 43,294.20 is: 59,745.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,125.37 : 103,672.78 = 43,294.20 : x
  2. Step 2: Convert to fraction form
    75,125.37/103,672.78 = 43,294.20/x
  3. Step 3: Cross multiply
    75,125.37x = 103,672.78 × 43,294.20
  4. Step 4: Simplify right side
    75,125.37x = 4,488,430,071.88
  5. Step 5: Solve for x
    x = 4,488,430,071.88/75,125.37
  6. Step 6: Final answer
    x = 59,745.86

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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.