Home / 74,661.33-111,990.61-18,501.57

Finding the Fourth Proportional to 74,661.33, 111,990.61 and 18,501.57

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Solution

The fourth proportional to 74,661.33, 111,990.61 and 18,501.57 is: 27,752.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,661.33 : 111,990.61 = 18,501.57 : x
  2. Step 2: Convert to fraction form
    74,661.33/111,990.61 = 18,501.57/x
  3. Step 3: Cross multiply
    74,661.33x = 111,990.61 × 18,501.57
  4. Step 4: Simplify right side
    74,661.33x = 2,072,002,110.26
  5. Step 5: Solve for x
    x = 2,072,002,110.26/74,661.33
  6. Step 6: Final answer
    x = 27,752.01

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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.