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Finding the Fourth Proportional to 45,484.26, 68,235.53 and 19,188.88

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Solution

The fourth proportional to 45,484.26, 68,235.53 and 19,188.88 is: 28,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,484.26 : 68,235.53 = 19,188.88 : x
  2. Step 2: Convert to fraction form
    45,484.26/68,235.53 = 19,188.88/x
  3. Step 3: Cross multiply
    45,484.26x = 68,235.53 × 19,188.88
  4. Step 4: Simplify right side
    45,484.26x = 1,309,363,396.91
  5. Step 5: Solve for x
    x = 1,309,363,396.91/45,484.26
  6. Step 6: Final answer
    x = 28,787.18

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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.