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Finding the Fourth Proportional to 45,588.56, 68,331 and 19,276.88

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Solution

The fourth proportional to 45,588.56, 68,331 and 19,276.88 is: 28,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,588.56 : 68,331 = 19,276.88 : x
  2. Step 2: Convert to fraction form
    45,588.56/68,331 = 19,276.88/x
  3. Step 3: Cross multiply
    45,588.56x = 68,331 × 19,276.88
  4. Step 4: Simplify right side
    45,588.56x = 1,317,208,487.28
  5. Step 5: Solve for x
    x = 1,317,208,487.28/45,588.56
  6. Step 6: Final answer
    x = 28,893.40

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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.