Home / 58,413.11-80,610-31,555.61

Finding the Fourth Proportional to 58,413.11, 80,610 and 31,555.61

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Solution

The fourth proportional to 58,413.11, 80,610 and 31,555.61 is: 43,546.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,413.11 : 80,610 = 31,555.61 : x
  2. Step 2: Convert to fraction form
    58,413.11/80,610 = 31,555.61/x
  3. Step 3: Cross multiply
    58,413.11x = 80,610 × 31,555.61
  4. Step 4: Simplify right side
    58,413.11x = 2,543,697,319.05
  5. Step 5: Solve for x
    x = 2,543,697,319.05/58,413.11
  6. Step 6: Final answer
    x = 43,546.69

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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.