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Finding the Fourth Proportional to 56,630.56, 84,958.96 and 19,188.64

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Solution

The fourth proportional to 56,630.56, 84,958.96 and 19,188.64 is: 28,787.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,630.56 : 84,958.96 = 19,188.64 : x
  2. Step 2: Convert to fraction form
    56,630.56/84,958.96 = 19,188.64/x
  3. Step 3: Cross multiply
    56,630.56x = 84,958.96 × 19,188.64
  4. Step 4: Simplify right side
    56,630.56x = 1,630,246,898.21
  5. Step 5: Solve for x
    x = 1,630,246,898.21/56,630.56
  6. Step 6: Final answer
    x = 28,787.41

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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.