Home / 55,413.10-76,443.51-40,282.30

Finding the Fourth Proportional to 55,413.10, 76,443.51 and 40,282.30

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Solution

The fourth proportional to 55,413.10, 76,443.51 and 40,282.30 is: 55,570.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,413.10 : 76,443.51 = 40,282.30 : x
  2. Step 2: Convert to fraction form
    55,413.10/76,443.51 = 40,282.30/x
  3. Step 3: Cross multiply
    55,413.10x = 76,443.51 × 40,282.30
  4. Step 4: Simplify right side
    55,413.10x = 3,079,320,402.87
  5. Step 5: Solve for x
    x = 3,079,320,402.87/55,413.10
  6. Step 6: Final answer
    x = 55,570.26

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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.