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Finding the Fourth Proportional to 45,703.62, 68,562.63 and 19,408.50

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Solution

The fourth proportional to 45,703.62, 68,562.63 and 19,408.50 is: 29,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,703.62 : 68,562.63 = 19,408.50 : x
  2. Step 2: Convert to fraction form
    45,703.62/68,562.63 = 19,408.50/x
  3. Step 3: Cross multiply
    45,703.62x = 68,562.63 × 19,408.50
  4. Step 4: Simplify right side
    45,703.62x = 1,330,697,804.36
  5. Step 5: Solve for x
    x = 1,330,697,804.36/45,703.62
  6. Step 6: Final answer
    x = 29,115.81

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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.