Home / 74,619.12-111,895.80-39,550.68

Finding the Fourth Proportional to 74,619.12, 111,895.80 and 39,550.68

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Solution

The fourth proportional to 74,619.12, 111,895.80 and 39,550.68 is: 59,308.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,619.12 : 111,895.80 = 39,550.68 : x
  2. Step 2: Convert to fraction form
    74,619.12/111,895.80 = 39,550.68/x
  3. Step 3: Cross multiply
    74,619.12x = 111,895.80 × 39,550.68
  4. Step 4: Simplify right side
    74,619.12x = 4,425,554,979.14
  5. Step 5: Solve for x
    x = 4,425,554,979.14/74,619.12
  6. Step 6: Final answer
    x = 59,308.59

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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.