Home / 80,880.69-111,615.47-45,069.92

Finding the Fourth Proportional to 80,880.69, 111,615.47 and 45,069.92

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Solution

The fourth proportional to 80,880.69, 111,615.47 and 45,069.92 is: 62,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,880.69 : 111,615.47 = 45,069.92 : x
  2. Step 2: Convert to fraction form
    80,880.69/111,615.47 = 45,069.92/x
  3. Step 3: Cross multiply
    80,880.69x = 111,615.47 × 45,069.92
  4. Step 4: Simplify right side
    80,880.69x = 5,030,500,107.81
  5. Step 5: Solve for x
    x = 5,030,500,107.81/80,880.69
  6. Step 6: Final answer
    x = 62,196.55

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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.