Home / 81,457.22-112,413.99-45,645.90

Finding the Fourth Proportional to 81,457.22, 112,413.99 and 45,645.90

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Solution

The fourth proportional to 81,457.22, 112,413.99 and 45,645.90 is: 62,993.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,457.22 : 112,413.99 = 45,645.90 : x
  2. Step 2: Convert to fraction form
    81,457.22/112,413.99 = 45,645.90/x
  3. Step 3: Cross multiply
    81,457.22x = 112,413.99 × 45,645.90
  4. Step 4: Simplify right side
    81,457.22x = 5,131,237,746.14
  5. Step 5: Solve for x
    x = 5,131,237,746.14/81,457.22
  6. Step 6: Final answer
    x = 62,993.04

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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.