Home / 74,625.09-111,935.80-30,239.92

Finding the Fourth Proportional to 74,625.09, 111,935.80 and 30,239.92

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Solution

The fourth proportional to 74,625.09, 111,935.80 and 30,239.92 is: 45,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,625.09 : 111,935.80 = 30,239.92 : x
  2. Step 2: Convert to fraction form
    74,625.09/111,935.80 = 30,239.92/x
  3. Step 3: Cross multiply
    74,625.09x = 111,935.80 × 30,239.92
  4. Step 4: Simplify right side
    74,625.09x = 3,384,929,637.14
  5. Step 5: Solve for x
    x = 3,384,929,637.14/74,625.09
  6. Step 6: Final answer
    x = 45,359.14

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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.