Home / 84,829.20-127,243.80-51,651.60

Finding the Fourth Proportional to 84,829.20, 127,243.80 and 51,651.60

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Solution

The fourth proportional to 84,829.20, 127,243.80 and 51,651.60 is: 77,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,829.20 : 127,243.80 = 51,651.60 : x
  2. Step 2: Convert to fraction form
    84,829.20/127,243.80 = 51,651.60/x
  3. Step 3: Cross multiply
    84,829.20x = 127,243.80 × 51,651.60
  4. Step 4: Simplify right side
    84,829.20x = 6,572,345,860.08
  5. Step 5: Solve for x
    x = 6,572,345,860.08/84,829.20
  6. Step 6: Final answer
    x = 77,477.40

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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.