Home / 60,448.05-90,620.10-21,000.03

Finding the Fourth Proportional to 60,448.05, 90,620.10 and 21,000.03

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Solution

The fourth proportional to 60,448.05, 90,620.10 and 21,000.03 is: 31,481.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,448.05 : 90,620.10 = 21,000.03 : x
  2. Step 2: Convert to fraction form
    60,448.05/90,620.10 = 21,000.03/x
  3. Step 3: Cross multiply
    60,448.05x = 90,620.10 × 21,000.03
  4. Step 4: Simplify right side
    60,448.05x = 1,903,024,818.60
  5. Step 5: Solve for x
    x = 1,903,024,818.60/60,448.05
  6. Step 6: Final answer
    x = 31,481.99

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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.