Home / 74,972.48-112,403.17-45,383.32

Finding the Fourth Proportional to 74,972.48, 112,403.17 and 45,383.32

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Solution

The fourth proportional to 74,972.48, 112,403.17 and 45,383.32 is: 68,041.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,972.48 : 112,403.17 = 45,383.32 : x
  2. Step 2: Convert to fraction form
    74,972.48/112,403.17 = 45,383.32/x
  3. Step 3: Cross multiply
    74,972.48x = 112,403.17 × 45,383.32
  4. Step 4: Simplify right side
    74,972.48x = 5,101,229,033.12
  5. Step 5: Solve for x
    x = 5,101,229,033.12/74,972.48
  6. Step 6: Final answer
    x = 68,041.35

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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.