Home / 53,822.12-80,738.67-20,570.16

Finding the Fourth Proportional to 53,822.12, 80,738.67 and 20,570.16

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Solution

The fourth proportional to 53,822.12, 80,738.67 and 20,570.16 is: 30,857.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,822.12 : 80,738.67 = 20,570.16 : x
  2. Step 2: Convert to fraction form
    53,822.12/80,738.67 = 20,570.16/x
  3. Step 3: Cross multiply
    53,822.12x = 80,738.67 × 20,570.16
  4. Step 4: Simplify right side
    53,822.12x = 1,660,807,740.00
  5. Step 5: Solve for x
    x = 1,660,807,740.00/53,822.12
  6. Step 6: Final answer
    x = 30,857.35

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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.