Home / 45,421.64-68,135.33-14,258.12

Finding the Fourth Proportional to 45,421.64, 68,135.33 and 14,258.12

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Solution

The fourth proportional to 45,421.64, 68,135.33 and 14,258.12 is: 21,388.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,421.64 : 68,135.33 = 14,258.12 : x
  2. Step 2: Convert to fraction form
    45,421.64/68,135.33 = 14,258.12/x
  3. Step 3: Cross multiply
    45,421.64x = 68,135.33 × 14,258.12
  4. Step 4: Simplify right side
    45,421.64x = 971,481,406.35
  5. Step 5: Solve for x
    x = 971,481,406.35/45,421.64
  6. Step 6: Final answer
    x = 21,388.08

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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.