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Finding the Fourth Proportional to 53,898.90, 80,856.45 and 18,829.14

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Solution

The fourth proportional to 53,898.90, 80,856.45 and 18,829.14 is: 28,246.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,898.90 : 80,856.45 = 18,829.14 : x
  2. Step 2: Convert to fraction form
    53,898.90/80,856.45 = 18,829.14/x
  3. Step 3: Cross multiply
    53,898.90x = 80,856.45 × 18,829.14
  4. Step 4: Simplify right side
    53,898.90x = 1,522,457,416.95
  5. Step 5: Solve for x
    x = 1,522,457,416.95/53,898.90
  6. Step 6: Final answer
    x = 28,246.54

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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.