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Finding the Fourth Proportional to 45,404, 68,106 and 12,572

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Solution

The fourth proportional to 45,404, 68,106 and 12,572 is: 18,858

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,404 : 68,106 = 12,572 : x
  2. Step 2: Convert to fraction form
    45,404/68,106 = 12,572/x
  3. Step 3: Cross multiply
    45,404x = 68,106 × 12,572
  4. Step 4: Simplify right side
    45,404x = 856,228,632
  5. Step 5: Solve for x
    x = 856,228,632/45,404
  6. Step 6: Final answer
    x = 18,858

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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.