Home / 55,653.12-83,512.44-20,617.20

Finding the Fourth Proportional to 55,653.12, 83,512.44 and 20,617.20

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Solution

The fourth proportional to 55,653.12, 83,512.44 and 20,617.20 is: 30,937.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,653.12 : 83,512.44 = 20,617.20 : x
  2. Step 2: Convert to fraction form
    55,653.12/83,512.44 = 20,617.20/x
  3. Step 3: Cross multiply
    55,653.12x = 83,512.44 × 20,617.20
  4. Step 4: Simplify right side
    55,653.12x = 1,721,792,677.97
  5. Step 5: Solve for x
    x = 1,721,792,677.97/55,653.12
  6. Step 6: Final answer
    x = 30,937.94

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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.