Home / 85,867.42-128,764.68-46,413.94

Finding the Fourth Proportional to 85,867.42, 128,764.68 and 46,413.94

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Solution

The fourth proportional to 85,867.42, 128,764.68 and 46,413.94 is: 69,601.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,867.42 : 128,764.68 = 46,413.94 : x
  2. Step 2: Convert to fraction form
    85,867.42/128,764.68 = 46,413.94/x
  3. Step 3: Cross multiply
    85,867.42x = 128,764.68 × 46,413.94
  4. Step 4: Simplify right side
    85,867.42x = 5,976,476,131.64
  5. Step 5: Solve for x
    x = 5,976,476,131.64/85,867.42
  6. Step 6: Final answer
    x = 69,601.21

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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.