Home / 74,603.88-111,936.60-30,219.35

Finding the Fourth Proportional to 74,603.88, 111,936.60 and 30,219.35

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Solution

The fourth proportional to 74,603.88, 111,936.60 and 30,219.35 is: 45,341.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,603.88 : 111,936.60 = 30,219.35 : x
  2. Step 2: Convert to fraction form
    74,603.88/111,936.60 = 30,219.35/x
  3. Step 3: Cross multiply
    74,603.88x = 111,936.60 × 30,219.35
  4. Step 4: Simplify right side
    74,603.88x = 3,382,650,733.53
  5. Step 5: Solve for x
    x = 3,382,650,733.53/74,603.88
  6. Step 6: Final answer
    x = 45,341.49

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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.