Home / 55,564.44-76,678.76-30,413.76

Finding the Fourth Proportional to 55,564.44, 76,678.76 and 30,413.76

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Solution

The fourth proportional to 55,564.44, 76,678.76 and 30,413.76 is: 41,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,564.44 : 76,678.76 = 30,413.76 : x
  2. Step 2: Convert to fraction form
    55,564.44/76,678.76 = 30,413.76/x
  3. Step 3: Cross multiply
    55,564.44x = 76,678.76 × 30,413.76
  4. Step 4: Simplify right side
    55,564.44x = 2,332,089,403.74
  5. Step 5: Solve for x
    x = 2,332,089,403.74/55,564.44
  6. Step 6: Final answer
    x = 41,970.90

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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.