Home / 71,314.06-98,413.41-39,485.01

Finding the Fourth Proportional to 71,314.06, 98,413.41 and 39,485.01

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Solution

The fourth proportional to 71,314.06, 98,413.41 and 39,485.01 is: 54,489.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,314.06 : 98,413.41 = 39,485.01 : x
  2. Step 2: Convert to fraction form
    71,314.06/98,413.41 = 39,485.01/x
  3. Step 3: Cross multiply
    71,314.06x = 98,413.41 × 39,485.01
  4. Step 4: Simplify right side
    71,314.06x = 3,885,854,477.98
  5. Step 5: Solve for x
    x = 3,885,854,477.98/71,314.06
  6. Step 6: Final answer
    x = 54,489.32

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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.