Home / 80,973.07-111,743.01-45,165.38

Finding the Fourth Proportional to 80,973.07, 111,743.01 and 45,165.38

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Solution

The fourth proportional to 80,973.07, 111,743.01 and 45,165.38 is: 62,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,973.07 : 111,743.01 = 45,165.38 : x
  2. Step 2: Convert to fraction form
    80,973.07/111,743.01 = 45,165.38/x
  3. Step 3: Cross multiply
    80,973.07x = 111,743.01 × 45,165.38
  4. Step 4: Simplify right side
    80,973.07x = 5,046,915,508.99
  5. Step 5: Solve for x
    x = 5,046,915,508.99/80,973.07
  6. Step 6: Final answer
    x = 62,328.32

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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.