Home / 80,478.78-111,055.50-44,668.80

Finding the Fourth Proportional to 80,478.78, 111,055.50 and 44,668.80

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Solution

The fourth proportional to 80,478.78, 111,055.50 and 44,668.80 is: 61,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,478.78 : 111,055.50 = 44,668.80 : x
  2. Step 2: Convert to fraction form
    80,478.78/111,055.50 = 44,668.80/x
  3. Step 3: Cross multiply
    80,478.78x = 111,055.50 × 44,668.80
  4. Step 4: Simplify right side
    80,478.78x = 4,960,715,918.40
  5. Step 5: Solve for x
    x = 4,960,715,918.40/80,478.78
  6. Step 6: Final answer
    x = 61,640.05

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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.