Home / 53,823.12-80,740.17-20,571.16

Finding the Fourth Proportional to 53,823.12, 80,740.17 and 20,571.16

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Solution

The fourth proportional to 53,823.12, 80,740.17 and 20,571.16 is: 30,858.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,823.12 : 80,740.17 = 20,571.16 : x
  2. Step 2: Convert to fraction form
    53,823.12/80,740.17 = 20,571.16/x
  3. Step 3: Cross multiply
    53,823.12x = 80,740.17 × 20,571.16
  4. Step 4: Simplify right side
    53,823.12x = 1,660,918,955.50
  5. Step 5: Solve for x
    x = 1,660,918,955.50/53,823.12
  6. Step 6: Final answer
    x = 30,858.84

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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.