Home / 74,073.36-111,090.22-20,762.36

Finding the Fourth Proportional to 74,073.36, 111,090.22 and 20,762.36

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Solution

The fourth proportional to 74,073.36, 111,090.22 and 20,762.36 is: 31,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,073.36 : 111,090.22 = 20,762.36 : x
  2. Step 2: Convert to fraction form
    74,073.36/111,090.22 = 20,762.36/x
  3. Step 3: Cross multiply
    74,073.36x = 111,090.22 × 20,762.36
  4. Step 4: Simplify right side
    74,073.36x = 2,306,495,140.12
  5. Step 5: Solve for x
    x = 2,306,495,140.12/74,073.36
  6. Step 6: Final answer
    x = 31,137.98

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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.