Home / 74,613.14-111,965.79-30,240.26

Finding the Fourth Proportional to 74,613.14, 111,965.79 and 30,240.26

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Solution

The fourth proportional to 74,613.14, 111,965.79 and 30,240.26 is: 45,379.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,613.14 : 111,965.79 = 30,240.26 : x
  2. Step 2: Convert to fraction form
    74,613.14/111,965.79 = 30,240.26/x
  3. Step 3: Cross multiply
    74,613.14x = 111,965.79 × 30,240.26
  4. Step 4: Simplify right side
    74,613.14x = 3,385,874,600.71
  5. Step 5: Solve for x
    x = 3,385,874,600.71/74,613.14
  6. Step 6: Final answer
    x = 45,379.07

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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.