Home / 74,646.74-111,936.99-39,578.18

Finding the Fourth Proportional to 74,646.74, 111,936.99 and 39,578.18

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Solution

The fourth proportional to 74,646.74, 111,936.99 and 39,578.18 is: 59,349.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,646.74 : 111,936.99 = 39,578.18 : x
  2. Step 2: Convert to fraction form
    74,646.74/111,936.99 = 39,578.18/x
  3. Step 3: Cross multiply
    74,646.74x = 111,936.99 × 39,578.18
  4. Step 4: Simplify right side
    74,646.74x = 4,430,262,338.88
  5. Step 5: Solve for x
    x = 4,430,262,338.88/74,646.74
  6. Step 6: Final answer
    x = 59,349.71

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1.5x scale

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.