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Finding the Fourth Proportional to 45,402.98, 68,104.48 and 12,123.16

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Solution

The fourth proportional to 45,402.98, 68,104.48 and 12,123.16 is: 18,184.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,402.98 : 68,104.48 = 12,123.16 : x
  2. Step 2: Convert to fraction form
    45,402.98/68,104.48 = 12,123.16/x
  3. Step 3: Cross multiply
    45,402.98x = 68,104.48 × 12,123.16
  4. Step 4: Simplify right side
    45,402.98x = 825,641,507.76
  5. Step 5: Solve for x
    x = 825,641,507.76/45,402.98
  6. Step 6: Final answer
    x = 18,184.74

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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.