Home / 74,745.45-103,122.83-47,902.74

Finding the Fourth Proportional to 74,745.45, 103,122.83 and 47,902.74

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Solution

The fourth proportional to 74,745.45, 103,122.83 and 47,902.74 is: 66,089.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,745.45 : 103,122.83 = 47,902.74 : x
  2. Step 2: Convert to fraction form
    74,745.45/103,122.83 = 47,902.74/x
  3. Step 3: Cross multiply
    74,745.45x = 103,122.83 × 47,902.74
  4. Step 4: Simplify right side
    74,745.45x = 4,939,865,874.04
  5. Step 5: Solve for x
    x = 4,939,865,874.04/74,745.45
  6. Step 6: Final answer
    x = 66,089.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.