Home / 40,745.04-61,126.23-12,664.42

Finding the Fourth Proportional to 40,745.04, 61,126.23 and 12,664.42

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Solution

The fourth proportional to 40,745.04, 61,126.23 and 12,664.42 is: 18,999.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,745.04 : 61,126.23 = 12,664.42 : x
  2. Step 2: Convert to fraction form
    40,745.04/61,126.23 = 12,664.42/x
  3. Step 3: Cross multiply
    40,745.04x = 61,126.23 × 12,664.42
  4. Step 4: Simplify right side
    40,745.04x = 774,128,073.18
  5. Step 5: Solve for x
    x = 774,128,073.18/40,745.04
  6. Step 6: Final answer
    x = 18,999.32

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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.