Home / 69,720.04-104,521.29-30,247.39

Finding the Fourth Proportional to 69,720.04, 104,521.29 and 30,247.39

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Solution

The fourth proportional to 69,720.04, 104,521.29 and 30,247.39 is: 45,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,720.04 : 104,521.29 = 30,247.39 : x
  2. Step 2: Convert to fraction form
    69,720.04/104,521.29 = 30,247.39/x
  3. Step 3: Cross multiply
    69,720.04x = 104,521.29 × 30,247.39
  4. Step 4: Simplify right side
    69,720.04x = 3,161,496,221.93
  5. Step 5: Solve for x
    x = 3,161,496,221.93/69,720.04
  6. Step 6: Final answer
    x = 45,345.59

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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.