Home / 51,274.14-70,779.90-31,137.51

Finding the Fourth Proportional to 51,274.14, 70,779.90 and 31,137.51

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Solution

The fourth proportional to 51,274.14, 70,779.90 and 31,137.51 is: 42,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,274.14 : 70,779.90 = 31,137.51 : x
  2. Step 2: Convert to fraction form
    51,274.14/70,779.90 = 31,137.51/x
  3. Step 3: Cross multiply
    51,274.14x = 70,779.90 × 31,137.51
  4. Step 4: Simplify right side
    51,274.14x = 2,203,909,844.05
  5. Step 5: Solve for x
    x = 2,203,909,844.05/51,274.14
  6. Step 6: Final answer
    x = 42,982.87

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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.