Home / 51,408.02-77,111.84-18,120.06

Finding the Fourth Proportional to 51,408.02, 77,111.84 and 18,120.06

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Solution

The fourth proportional to 51,408.02, 77,111.84 and 18,120.06 is: 27,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,408.02 : 77,111.84 = 18,120.06 : x
  2. Step 2: Convert to fraction form
    51,408.02/77,111.84 = 18,120.06/x
  3. Step 3: Cross multiply
    51,408.02x = 77,111.84 × 18,120.06
  4. Step 4: Simplify right side
    51,408.02x = 1,397,271,167.51
  5. Step 5: Solve for x
    x = 1,397,271,167.51/51,408.02
  6. Step 6: Final answer
    x = 27,180.02

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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.