Home / 56,413.44-77,856-31,269.12

Finding the Fourth Proportional to 56,413.44, 77,856 and 31,269.12

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Solution

The fourth proportional to 56,413.44, 77,856 and 31,269.12 is: 43,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,413.44 : 77,856 = 31,269.12 : x
  2. Step 2: Convert to fraction form
    56,413.44/77,856 = 31,269.12/x
  3. Step 3: Cross multiply
    56,413.44x = 77,856 × 31,269.12
  4. Step 4: Simplify right side
    56,413.44x = 2,434,488,606.72
  5. Step 5: Solve for x
    x = 2,434,488,606.72/56,413.44
  6. Step 6: Final answer
    x = 43,154.41

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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.