Home / 81,491.87-112,453.18-45,195.23

Finding the Fourth Proportional to 81,491.87, 112,453.18 and 45,195.23

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Solution

The fourth proportional to 81,491.87, 112,453.18 and 45,195.23 is: 62,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,491.87 : 112,453.18 = 45,195.23 : x
  2. Step 2: Convert to fraction form
    81,491.87/112,453.18 = 45,195.23/x
  3. Step 3: Cross multiply
    81,491.87x = 112,453.18 × 45,195.23
  4. Step 4: Simplify right side
    81,491.87x = 5,082,347,502.48
  5. Step 5: Solve for x
    x = 5,082,347,502.48/81,491.87
  6. Step 6: Final answer
    x = 62,366.31

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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.