Home / 63,986.40-95,979.60-30,700.80

Finding the Fourth Proportional to 63,986.40, 95,979.60 and 30,700.80

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Solution

The fourth proportional to 63,986.40, 95,979.60 and 30,700.80 is: 46,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,986.40 : 95,979.60 = 30,700.80 : x
  2. Step 2: Convert to fraction form
    63,986.40/95,979.60 = 30,700.80/x
  3. Step 3: Cross multiply
    63,986.40x = 95,979.60 × 30,700.80
  4. Step 4: Simplify right side
    63,986.40x = 2,946,650,503.68
  5. Step 5: Solve for x
    x = 2,946,650,503.68/63,986.40
  6. Step 6: Final answer
    x = 46,051.20

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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.