Home / 45,819.90-68,740.61-14,228.33

Finding the Fourth Proportional to 45,819.90, 68,740.61 and 14,228.33

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Solution

The fourth proportional to 45,819.90, 68,740.61 and 14,228.33 is: 21,345.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,819.90 : 68,740.61 = 14,228.33 : x
  2. Step 2: Convert to fraction form
    45,819.90/68,740.61 = 14,228.33/x
  3. Step 3: Cross multiply
    45,819.90x = 68,740.61 × 14,228.33
  4. Step 4: Simplify right side
    45,819.90x = 978,064,083.48
  5. Step 5: Solve for x
    x = 978,064,083.48/45,819.90
  6. Step 6: Final answer
    x = 21,345.84

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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.