Home / 57,729.60-86,667.30-31,096.80

Finding the Fourth Proportional to 57,729.60, 86,667.30 and 31,096.80

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Solution

The fourth proportional to 57,729.60, 86,667.30 and 31,096.80 is: 46,684.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,729.60 : 86,667.30 = 31,096.80 : x
  2. Step 2: Convert to fraction form
    57,729.60/86,667.30 = 31,096.80/x
  3. Step 3: Cross multiply
    57,729.60x = 86,667.30 × 31,096.80
  4. Step 4: Simplify right side
    57,729.60x = 2,695,075,694.64
  5. Step 5: Solve for x
    x = 2,695,075,694.64/57,729.60
  6. Step 6: Final answer
    x = 46,684.47

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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.