Home / 53,757.60-80,636.96-18,698.40

Finding the Fourth Proportional to 53,757.60, 80,636.96 and 18,698.40

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Solution

The fourth proportional to 53,757.60, 80,636.96 and 18,698.40 is: 28,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,757.60 : 80,636.96 = 18,698.40 : x
  2. Step 2: Convert to fraction form
    53,757.60/80,636.96 = 18,698.40/x
  3. Step 3: Cross multiply
    53,757.60x = 80,636.96 × 18,698.40
  4. Step 4: Simplify right side
    53,757.60x = 1,507,782,132.86
  5. Step 5: Solve for x
    x = 1,507,782,132.86/53,757.60
  6. Step 6: Final answer
    x = 28,047.79

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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.