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Finding the Fourth Proportional to 48,689.90, 72,842.69 and 36,877.71

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Solution

The fourth proportional to 48,689.90, 72,842.69 and 36,877.71 is: 55,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,689.90 : 72,842.69 = 36,877.71 : x
  2. Step 2: Convert to fraction form
    48,689.90/72,842.69 = 36,877.71/x
  3. Step 3: Cross multiply
    48,689.90x = 72,842.69 × 36,877.71
  4. Step 4: Simplify right side
    48,689.90x = 2,686,271,413.05
  5. Step 5: Solve for x
    x = 2,686,271,413.05/48,689.90
  6. Step 6: Final answer
    x = 55,171.02

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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.