Home / 77,077.25-115,615.88-21,673.25

Finding the Fourth Proportional to 77,077.25, 115,615.88 and 21,673.25

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Solution

The fourth proportional to 77,077.25, 115,615.88 and 21,673.25 is: 32,509.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,077.25 : 115,615.88 = 21,673.25 : x
  2. Step 2: Convert to fraction form
    77,077.25/115,615.88 = 21,673.25/x
  3. Step 3: Cross multiply
    77,077.25x = 115,615.88 × 21,673.25
  4. Step 4: Simplify right side
    77,077.25x = 2,505,771,871.21
  5. Step 5: Solve for x
    x = 2,505,771,871.21/77,077.25
  6. Step 6: Final answer
    x = 32,509.88

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1.5x scale

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.