Home / 74,951.22-103,422.72-48,130.05

Finding the Fourth Proportional to 74,951.22, 103,422.72 and 48,130.05

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Solution

The fourth proportional to 74,951.22, 103,422.72 and 48,130.05 is: 66,413.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,951.22 : 103,422.72 = 48,130.05 : x
  2. Step 2: Convert to fraction form
    74,951.22/103,422.72 = 48,130.05/x
  3. Step 3: Cross multiply
    74,951.22x = 103,422.72 × 48,130.05
  4. Step 4: Simplify right side
    74,951.22x = 4,977,740,684.74
  5. Step 5: Solve for x
    x = 4,977,740,684.74/74,951.22
  6. Step 6: Final answer
    x = 66,413.07

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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.