Home / 74,929.86-103,408.90-42,674.92

Finding the Fourth Proportional to 74,929.86, 103,408.90 and 42,674.92

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Solution

The fourth proportional to 74,929.86, 103,408.90 and 42,674.92 is: 58,894.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,929.86 : 103,408.90 = 42,674.92 : x
  2. Step 2: Convert to fraction form
    74,929.86/103,408.90 = 42,674.92/x
  3. Step 3: Cross multiply
    74,929.86x = 103,408.90 × 42,674.92
  4. Step 4: Simplify right side
    74,929.86x = 4,412,966,409.62
  5. Step 5: Solve for x
    x = 4,412,966,409.62/74,929.86
  6. Step 6: Final answer
    x = 58,894.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.