Home / 80,880.71-111,613.85-45,069.93

Finding the Fourth Proportional to 80,880.71, 111,613.85 and 45,069.93

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Solution

The fourth proportional to 80,880.71, 111,613.85 and 45,069.93 is: 62,195.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,880.71 : 111,613.85 = 45,069.93 : x
  2. Step 2: Convert to fraction form
    80,880.71/111,613.85 = 45,069.93/x
  3. Step 3: Cross multiply
    80,880.71x = 111,613.85 × 45,069.93
  4. Step 4: Simplify right side
    80,880.71x = 5,030,428,181.18
  5. Step 5: Solve for x
    x = 5,030,428,181.18/80,880.71
  6. Step 6: Final answer
    x = 62,195.65

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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.