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Finding the Fourth Proportional to 60,003.70, 90,005.55 and 18,450.70

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Solution

The fourth proportional to 60,003.70, 90,005.55 and 18,450.70 is: 27,676.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,003.70 : 90,005.55 = 18,450.70 : x
  2. Step 2: Convert to fraction form
    60,003.70/90,005.55 = 18,450.70/x
  3. Step 3: Cross multiply
    60,003.70x = 90,005.55 × 18,450.70
  4. Step 4: Simplify right side
    60,003.70x = 1,660,665,401.39
  5. Step 5: Solve for x
    x = 1,660,665,401.39/60,003.70
  6. Step 6: Final answer
    x = 27,676.05

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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.