Home / 81,297.06-112,195.44-45,485.08

Finding the Fourth Proportional to 81,297.06, 112,195.44 and 45,485.08

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Solution

The fourth proportional to 81,297.06, 112,195.44 and 45,485.08 is: 62,772.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,297.06 : 112,195.44 = 45,485.08 : x
  2. Step 2: Convert to fraction form
    81,297.06/112,195.44 = 45,485.08/x
  3. Step 3: Cross multiply
    81,297.06x = 112,195.44 × 45,485.08
  4. Step 4: Simplify right side
    81,297.06x = 5,103,218,564.04
  5. Step 5: Solve for x
    x = 5,103,218,564.04/81,297.06
  6. Step 6: Final answer
    x = 62,772.49

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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.