Home / 53,485.61-80,206.88-20,187.59

Finding the Fourth Proportional to 53,485.61, 80,206.88 and 20,187.59

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Solution

The fourth proportional to 53,485.61, 80,206.88 and 20,187.59 is: 30,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,485.61 : 80,206.88 = 20,187.59 : x
  2. Step 2: Convert to fraction form
    53,485.61/80,206.88 = 20,187.59/x
  3. Step 3: Cross multiply
    53,485.61x = 80,206.88 × 20,187.59
  4. Step 4: Simplify right side
    53,485.61x = 1,619,183,106.65
  5. Step 5: Solve for x
    x = 1,619,183,106.65/53,485.61
  6. Step 6: Final answer
    x = 30,273.25

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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.