Home / 81,195.87-112,048.36-45,389.21

Finding the Fourth Proportional to 81,195.87, 112,048.36 and 45,389.21

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Solution

The fourth proportional to 81,195.87, 112,048.36 and 45,389.21 is: 62,636.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,195.87 : 112,048.36 = 45,389.21 : x
  2. Step 2: Convert to fraction form
    81,195.87/112,048.36 = 45,389.21/x
  3. Step 3: Cross multiply
    81,195.87x = 112,048.36 × 45,389.21
  4. Step 4: Simplify right side
    81,195.87x = 5,085,786,754.07
  5. Step 5: Solve for x
    x = 5,085,786,754.07/81,195.87
  6. Step 6: Final answer
    x = 62,636.03

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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.