Home / 51,030.36-70,418.22-31,918.74

Finding the Fourth Proportional to 51,030.36, 70,418.22 and 31,918.74

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Solution

The fourth proportional to 51,030.36, 70,418.22 and 31,918.74 is: 44,045.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,030.36 : 70,418.22 = 31,918.74 : x
  2. Step 2: Convert to fraction form
    51,030.36/70,418.22 = 31,918.74/x
  3. Step 3: Cross multiply
    51,030.36x = 70,418.22 × 31,918.74
  4. Step 4: Simplify right side
    51,030.36x = 2,247,660,855.44
  5. Step 5: Solve for x
    x = 2,247,660,855.44/51,030.36
  6. Step 6: Final answer
    x = 44,045.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.