Home / 51,408.10-77,112.15-30,672.10

Finding the Fourth Proportional to 51,408.10, 77,112.15 and 30,672.10

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Solution

The fourth proportional to 51,408.10, 77,112.15 and 30,672.10 is: 46,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,408.10 : 77,112.15 = 30,672.10 : x
  2. Step 2: Convert to fraction form
    51,408.10/77,112.15 = 30,672.10/x
  3. Step 3: Cross multiply
    51,408.10x = 77,112.15 × 30,672.10
  4. Step 4: Simplify right side
    51,408.10x = 2,365,191,576.02
  5. Step 5: Solve for x
    x = 2,365,191,576.02/51,408.10
  6. Step 6: Final answer
    x = 46,008.15

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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.