Home / 30,456.78-45,574.45-25,142.37

Finding the Fourth Proportional to 30,456.78, 45,574.45 and 25,142.37

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Solution

The fourth proportional to 30,456.78, 45,574.45 and 25,142.37 is: 37,622.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456.78 : 45,574.45 = 25,142.37 : x
  2. Step 2: Convert to fraction form
    30,456.78/45,574.45 = 25,142.37/x
  3. Step 3: Cross multiply
    30,456.78x = 45,574.45 × 25,142.37
  4. Step 4: Simplify right side
    30,456.78x = 1,145,849,450.69
  5. Step 5: Solve for x
    x = 1,145,849,450.69/30,456.78
  6. Step 6: Final answer
    x = 37,622.15

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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.