Home / 51,645.98-71,278.61-28,986.32

Finding the Fourth Proportional to 51,645.98, 71,278.61 and 28,986.32

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Solution

The fourth proportional to 51,645.98, 71,278.61 and 28,986.32 is: 40,005.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,645.98 : 71,278.61 = 28,986.32 : x
  2. Step 2: Convert to fraction form
    51,645.98/71,278.61 = 28,986.32/x
  3. Step 3: Cross multiply
    51,645.98x = 71,278.61 × 28,986.32
  4. Step 4: Simplify right side
    51,645.98x = 2,066,104,631.88
  5. Step 5: Solve for x
    x = 2,066,104,631.88/51,645.98
  6. Step 6: Final answer
    x = 40,005.14

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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.