Home / 81,491.90-112,453.16-45,195.26

Finding the Fourth Proportional to 81,491.90, 112,453.16 and 45,195.26

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Solution

The fourth proportional to 81,491.90, 112,453.16 and 45,195.26 is: 62,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,491.90 : 112,453.16 = 45,195.26 : x
  2. Step 2: Convert to fraction form
    81,491.90/112,453.16 = 45,195.26/x
  3. Step 3: Cross multiply
    81,491.90x = 112,453.16 × 45,195.26
  4. Step 4: Simplify right side
    81,491.90x = 5,082,349,015.78
  5. Step 5: Solve for x
    x = 5,082,349,015.78/81,491.90
  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.