Home / 55,353.12-76,386-30,203.04

Finding the Fourth Proportional to 55,353.12, 76,386 and 30,203.04

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Solution

The fourth proportional to 55,353.12, 76,386 and 30,203.04 is: 41,679.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,353.12 : 76,386 = 30,203.04 : x
  2. Step 2: Convert to fraction form
    55,353.12/76,386 = 30,203.04/x
  3. Step 3: Cross multiply
    55,353.12x = 76,386 × 30,203.04
  4. Step 4: Simplify right side
    55,353.12x = 2,307,089,413.44
  5. Step 5: Solve for x
    x = 2,307,089,413.44/55,353.12
  6. Step 6: Final answer
    x = 41,679.48

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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.