Home / 81,629.41-112,639.93-45,823.36

Finding the Fourth Proportional to 81,629.41, 112,639.93 and 45,823.36

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Solution

The fourth proportional to 81,629.41, 112,639.93 and 45,823.36 is: 63,231.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,629.41 : 112,639.93 = 45,823.36 : x
  2. Step 2: Convert to fraction form
    81,629.41/112,639.93 = 45,823.36/x
  3. Step 3: Cross multiply
    81,629.41x = 112,639.93 × 45,823.36
  4. Step 4: Simplify right side
    81,629.41x = 5,161,540,062.76
  5. Step 5: Solve for x
    x = 5,161,540,062.76/81,629.41
  6. Step 6: Final answer
    x = 63,231.38

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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.