Home / 74,972.86-112,403.73-45,383.69

Finding the Fourth Proportional to 74,972.86, 112,403.73 and 45,383.69

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Solution

The fourth proportional to 74,972.86, 112,403.73 and 45,383.69 is: 68,041.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,972.86 : 112,403.73 = 45,383.69 : x
  2. Step 2: Convert to fraction form
    74,972.86/112,403.73 = 45,383.69/x
  3. Step 3: Cross multiply
    74,972.86x = 112,403.73 × 45,383.69
  4. Step 4: Simplify right side
    74,972.86x = 5,101,296,488.36
  5. Step 5: Solve for x
    x = 5,101,296,488.36/74,972.86
  6. Step 6: Final answer
    x = 68,041.91

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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.