Home / 76,860.48-106,093.92-45,039.68

Finding the Fourth Proportional to 76,860.48, 106,093.92 and 45,039.68

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Solution

The fourth proportional to 76,860.48, 106,093.92 and 45,039.68 is: 62,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,860.48 : 106,093.92 = 45,039.68 : x
  2. Step 2: Convert to fraction form
    76,860.48/106,093.92 = 45,039.68/x
  3. Step 3: Cross multiply
    76,860.48x = 106,093.92 × 45,039.68
  4. Step 4: Simplify right side
    76,860.48x = 4,778,436,206.75
  5. Step 5: Solve for x
    x = 4,778,436,206.75/76,860.48
  6. Step 6: Final answer
    x = 62,170.26

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1.5x scale

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.