Home / 80,985.36-111,759.74-45,175.36

Finding the Fourth Proportional to 80,985.36, 111,759.74 and 45,175.36

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Solution

The fourth proportional to 80,985.36, 111,759.74 and 45,175.36 is: 62,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,985.36 : 111,759.74 = 45,175.36 : x
  2. Step 2: Convert to fraction form
    80,985.36/111,759.74 = 45,175.36/x
  3. Step 3: Cross multiply
    80,985.36x = 111,759.74 × 45,175.36
  4. Step 4: Simplify right side
    80,985.36x = 5,048,786,488.01
  5. Step 5: Solve for x
    x = 5,048,786,488.01/80,985.36
  6. Step 6: Final answer
    x = 62,341.97

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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.