Home / 54,019.42-80,973.75-20,730.55

Finding the Fourth Proportional to 54,019.42, 80,973.75 and 20,730.55

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Solution

The fourth proportional to 54,019.42, 80,973.75 and 20,730.55 is: 31,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,019.42 : 80,973.75 = 20,730.55 : x
  2. Step 2: Convert to fraction form
    54,019.42/80,973.75 = 20,730.55/x
  3. Step 3: Cross multiply
    54,019.42x = 80,973.75 × 20,730.55
  4. Step 4: Simplify right side
    54,019.42x = 1,678,630,373.06
  5. Step 5: Solve for x
    x = 1,678,630,373.06/54,019.42
  6. Step 6: Final answer
    x = 31,074.57

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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.