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Finding the Fourth Proportional to 51,445.50, 77,104.50 and 30,364.20

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Solution

The fourth proportional to 51,445.50, 77,104.50 and 30,364.20 is: 45,508.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,445.50 : 77,104.50 = 30,364.20 : x
  2. Step 2: Convert to fraction form
    51,445.50/77,104.50 = 30,364.20/x
  3. Step 3: Cross multiply
    51,445.50x = 77,104.50 × 30,364.20
  4. Step 4: Simplify right side
    51,445.50x = 2,341,216,458.90
  5. Step 5: Solve for x
    x = 2,341,216,458.90/51,445.50
  6. Step 6: Final answer
    x = 45,508.67

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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.