Home / 45,479.97-68,215.19-12,203.45

Finding the Fourth Proportional to 45,479.97, 68,215.19 and 12,203.45

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Solution

The fourth proportional to 45,479.97, 68,215.19 and 12,203.45 is: 18,303.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,479.97 : 68,215.19 = 12,203.45 : x
  2. Step 2: Convert to fraction form
    45,479.97/68,215.19 = 12,203.45/x
  3. Step 3: Cross multiply
    45,479.97x = 68,215.19 × 12,203.45
  4. Step 4: Simplify right side
    45,479.97x = 832,460,258.31
  5. Step 5: Solve for x
    x = 832,460,258.31/45,479.97
  6. Step 6: Final answer
    x = 18,303.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.