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Finding the Fourth Proportional to 75,580.60, 113,458.20 and 40,588.60

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Solution

The fourth proportional to 75,580.60, 113,458.20 and 40,588.60 is: 60,929.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,580.60 : 113,458.20 = 40,588.60 : x
  2. Step 2: Convert to fraction form
    75,580.60/113,458.20 = 40,588.60/x
  3. Step 3: Cross multiply
    75,580.60x = 113,458.20 × 40,588.60
  4. Step 4: Simplify right side
    75,580.60x = 4,605,109,496.52
  5. Step 5: Solve for x
    x = 4,605,109,496.52/75,580.60
  6. Step 6: Final answer
    x = 60,929.78

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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.