Home / 45,987.76-68,994.36-18,305.20

Finding the Fourth Proportional to 45,987.76, 68,994.36 and 18,305.20

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Solution

The fourth proportional to 45,987.76, 68,994.36 and 18,305.20 is: 27,462.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,987.76 : 68,994.36 = 18,305.20 : x
  2. Step 2: Convert to fraction form
    45,987.76/68,994.36 = 18,305.20/x
  3. Step 3: Cross multiply
    45,987.76x = 68,994.36 × 18,305.20
  4. Step 4: Simplify right side
    45,987.76x = 1,262,955,558.67
  5. Step 5: Solve for x
    x = 1,262,955,558.67/45,987.76
  6. Step 6: Final answer
    x = 27,462.86

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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.