Home / 80,878.16-121,317.36-41,413.76

Finding the Fourth Proportional to 80,878.16, 121,317.36 and 41,413.76

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Solution

The fourth proportional to 80,878.16, 121,317.36 and 41,413.76 is: 62,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,878.16 : 121,317.36 = 41,413.76 : x
  2. Step 2: Convert to fraction form
    80,878.16/121,317.36 = 41,413.76/x
  3. Step 3: Cross multiply
    80,878.16x = 121,317.36 × 41,413.76
  4. Step 4: Simplify right side
    80,878.16x = 5,024,208,030.87
  5. Step 5: Solve for x
    x = 5,024,208,030.87/80,878.16
  6. Step 6: Final answer
    x = 62,120.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.