Home / 51,626.90-77,431.12-13,676.44

Finding the Fourth Proportional to 51,626.90, 77,431.12 and 13,676.44

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Solution

The fourth proportional to 51,626.90, 77,431.12 and 13,676.44 is: 20,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,626.90 : 77,431.12 = 13,676.44 : x
  2. Step 2: Convert to fraction form
    51,626.90/77,431.12 = 13,676.44/x
  3. Step 3: Cross multiply
    51,626.90x = 77,431.12 × 13,676.44
  4. Step 4: Simplify right side
    51,626.90x = 1,058,982,066.81
  5. Step 5: Solve for x
    x = 1,058,982,066.81/51,626.90
  6. Step 6: Final answer
    x = 20,512.21

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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.