Home / 45,425.81-68,139.33-14,261.06

Finding the Fourth Proportional to 45,425.81, 68,139.33 and 14,261.06

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Solution

The fourth proportional to 45,425.81, 68,139.33 and 14,261.06 is: 21,391.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,425.81 : 68,139.33 = 14,261.06 : x
  2. Step 2: Convert to fraction form
    45,425.81/68,139.33 = 14,261.06/x
  3. Step 3: Cross multiply
    45,425.81x = 68,139.33 × 14,261.06
  4. Step 4: Simplify right side
    45,425.81x = 971,739,190.36
  5. Step 5: Solve for x
    x = 971,739,190.36/45,425.81
  6. Step 6: Final answer
    x = 21,391.78

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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.