Home / 45,370.20-68,055.30-13,780.20

Finding the Fourth Proportional to 45,370.20, 68,055.30 and 13,780.20

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Solution

The fourth proportional to 45,370.20, 68,055.30 and 13,780.20 is: 20,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,370.20 : 68,055.30 = 13,780.20 : x
  2. Step 2: Convert to fraction form
    45,370.20/68,055.30 = 13,780.20/x
  3. Step 3: Cross multiply
    45,370.20x = 68,055.30 × 13,780.20
  4. Step 4: Simplify right side
    45,370.20x = 937,815,645.06
  5. Step 5: Solve for x
    x = 937,815,645.06/45,370.20
  6. Step 6: Final answer
    x = 20,670.30

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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.