Home / 48,089.70-72,138.65-12,555.73

Finding the Fourth Proportional to 48,089.70, 72,138.65 and 12,555.73

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Solution

The fourth proportional to 48,089.70, 72,138.65 and 12,555.73 is: 18,834.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,089.70 : 72,138.65 = 12,555.73 : x
  2. Step 2: Convert to fraction form
    48,089.70/72,138.65 = 12,555.73/x
  3. Step 3: Cross multiply
    48,089.70x = 72,138.65 × 12,555.73
  4. Step 4: Simplify right side
    48,089.70x = 905,753,712.88
  5. Step 5: Solve for x
    x = 905,753,712.88/48,089.70
  6. Step 6: Final answer
    x = 18,834.67

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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.