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Finding the Fourth Proportional to 73,130.60, 109,695.90 and 41,940.20

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Solution

The fourth proportional to 73,130.60, 109,695.90 and 41,940.20 is: 62,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,130.60 : 109,695.90 = 41,940.20 : x
  2. Step 2: Convert to fraction form
    73,130.60/109,695.90 = 41,940.20/x
  3. Step 3: Cross multiply
    73,130.60x = 109,695.90 × 41,940.20
  4. Step 4: Simplify right side
    73,130.60x = 4,600,667,985.18
  5. Step 5: Solve for x
    x = 4,600,667,985.18/73,130.60
  6. Step 6: Final answer
    x = 62,910.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.