Home / 90,246.05-124,539.04-49,413.88

Finding the Fourth Proportional to 90,246.05, 124,539.04 and 49,413.88

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Solution

The fourth proportional to 90,246.05, 124,539.04 and 49,413.88 is: 68,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,246.05 : 124,539.04 = 49,413.88 : x
  2. Step 2: Convert to fraction form
    90,246.05/124,539.04 = 49,413.88/x
  3. Step 3: Cross multiply
    90,246.05x = 124,539.04 × 49,413.88
  4. Step 4: Simplify right side
    90,246.05x = 6,153,956,742.99
  5. Step 5: Solve for x
    x = 6,153,956,742.99/90,246.05
  6. Step 6: Final answer
    x = 68,190.87

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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.