Home / 85,140.21-127,739.49-32,564.73

Finding the Fourth Proportional to 85,140.21, 127,739.49 and 32,564.73

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Solution

The fourth proportional to 85,140.21, 127,739.49 and 32,564.73 is: 48,858.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,140.21 : 127,739.49 = 32,564.73 : x
  2. Step 2: Convert to fraction form
    85,140.21/127,739.49 = 32,564.73/x
  3. Step 3: Cross multiply
    85,140.21x = 127,739.49 × 32,564.73
  4. Step 4: Simplify right side
    85,140.21x = 4,159,802,002.19
  5. Step 5: Solve for x
    x = 4,159,802,002.19/85,140.21
  6. Step 6: Final answer
    x = 48,858.25

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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.