Home / 80,880.12-111,614.27-45,069.80

Finding the Fourth Proportional to 80,880.12, 111,614.27 and 45,069.80

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Solution

The fourth proportional to 80,880.12, 111,614.27 and 45,069.80 is: 62,196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,880.12 : 111,614.27 = 45,069.80 : x
  2. Step 2: Convert to fraction form
    80,880.12/111,614.27 = 45,069.80/x
  3. Step 3: Cross multiply
    80,880.12x = 111,614.27 × 45,069.80
  4. Step 4: Simplify right side
    80,880.12x = 5,030,432,042.63
  5. Step 5: Solve for x
    x = 5,030,432,042.63/80,880.12
  6. Step 6: Final answer
    x = 62,196.15

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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.