Home / 83,426.44-115,136.74-47,621.83

Finding the Fourth Proportional to 83,426.44, 115,136.74 and 47,621.83

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Solution

The fourth proportional to 83,426.44, 115,136.74 and 47,621.83 is: 65,722.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,426.44 : 115,136.74 = 47,621.83 : x
  2. Step 2: Convert to fraction form
    83,426.44/115,136.74 = 47,621.83/x
  3. Step 3: Cross multiply
    83,426.44x = 115,136.74 × 47,621.83
  4. Step 4: Simplify right side
    83,426.44x = 5,483,022,570.42
  5. Step 5: Solve for x
    x = 5,483,022,570.42/83,426.44
  6. Step 6: Final answer
    x = 65,722.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.