Home / 51,290.88-70,813.56-39,331.32

Finding the Fourth Proportional to 51,290.88, 70,813.56 and 39,331.32

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Solution

The fourth proportional to 51,290.88, 70,813.56 and 39,331.32 is: 54,301.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,290.88 : 70,813.56 = 39,331.32 : x
  2. Step 2: Convert to fraction form
    51,290.88/70,813.56 = 39,331.32/x
  3. Step 3: Cross multiply
    51,290.88x = 70,813.56 × 39,331.32
  4. Step 4: Simplify right side
    51,290.88x = 2,785,190,788.70
  5. Step 5: Solve for x
    x = 2,785,190,788.70/51,290.88
  6. Step 6: Final answer
    x = 54,301.87

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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.