Home / 40,810.20-61,271.46-21,102.36

Finding the Fourth Proportional to 40,810.20, 61,271.46 and 21,102.36

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Solution

The fourth proportional to 40,810.20, 61,271.46 and 21,102.36 is: 31,682.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,810.20 : 61,271.46 = 21,102.36 : x
  2. Step 2: Convert to fraction form
    40,810.20/61,271.46 = 21,102.36/x
  3. Step 3: Cross multiply
    40,810.20x = 61,271.46 × 21,102.36
  4. Step 4: Simplify right side
    40,810.20x = 1,292,972,406.65
  5. Step 5: Solve for x
    x = 1,292,972,406.65/40,810.20
  6. Step 6: Final answer
    x = 31,682.58

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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.