Home / 45,918.78-63,351.61-30,012.40

Finding the Fourth Proportional to 45,918.78, 63,351.61 and 30,012.40

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Solution

The fourth proportional to 45,918.78, 63,351.61 and 30,012.40 is: 41,406.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,918.78 : 63,351.61 = 30,012.40 : x
  2. Step 2: Convert to fraction form
    45,918.78/63,351.61 = 30,012.40/x
  3. Step 3: Cross multiply
    45,918.78x = 63,351.61 × 30,012.40
  4. Step 4: Simplify right side
    45,918.78x = 1,901,333,709.90
  5. Step 5: Solve for x
    x = 1,901,333,709.90/45,918.78
  6. Step 6: Final answer
    x = 41,406.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.