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Finding the Fourth Proportional to 47,353.60, 65,339.22 and 30,360.88

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Solution

The fourth proportional to 47,353.60, 65,339.22 and 30,360.88 is: 41,892.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,353.60 : 65,339.22 = 30,360.88 : x
  2. Step 2: Convert to fraction form
    47,353.60/65,339.22 = 30,360.88/x
  3. Step 3: Cross multiply
    47,353.60x = 65,339.22 × 30,360.88
  4. Step 4: Simplify right side
    47,353.60x = 1,983,756,217.71
  5. Step 5: Solve for x
    x = 1,983,756,217.71/47,353.60
  6. Step 6: Final answer
    x = 41,892.41

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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.