Home / 53,840.14-80,760.54-18,779.84

Finding the Fourth Proportional to 53,840.14, 80,760.54 and 18,779.84

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Solution

The fourth proportional to 53,840.14, 80,760.54 and 18,779.84 is: 28,169.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,840.14 : 80,760.54 = 18,779.84 : x
  2. Step 2: Convert to fraction form
    53,840.14/80,760.54 = 18,779.84/x
  3. Step 3: Cross multiply
    53,840.14x = 80,760.54 × 18,779.84
  4. Step 4: Simplify right side
    53,840.14x = 1,516,670,019.51
  5. Step 5: Solve for x
    x = 1,516,670,019.51/53,840.14
  6. Step 6: Final answer
    x = 28,169.88

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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.