Home / 74,027.64-102,155.44-42,190.39

Finding the Fourth Proportional to 74,027.64, 102,155.44 and 42,190.39

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Solution

The fourth proportional to 74,027.64, 102,155.44 and 42,190.39 is: 58,221.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,027.64 : 102,155.44 = 42,190.39 : x
  2. Step 2: Convert to fraction form
    74,027.64/102,155.44 = 42,190.39/x
  3. Step 3: Cross multiply
    74,027.64x = 102,155.44 × 42,190.39
  4. Step 4: Simplify right side
    74,027.64x = 4,309,977,876.44
  5. Step 5: Solve for x
    x = 4,309,977,876.44/74,027.64
  6. Step 6: Final answer
    x = 58,221.19

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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.