Home / 80,763.63-121,150.30-25,359.63

Finding the Fourth Proportional to 80,763.63, 121,150.30 and 25,359.63

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Solution

The fourth proportional to 80,763.63, 121,150.30 and 25,359.63 is: 38,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,763.63 : 121,150.30 = 25,359.63 : x
  2. Step 2: Convert to fraction form
    80,763.63/121,150.30 = 25,359.63/x
  3. Step 3: Cross multiply
    80,763.63x = 121,150.30 × 25,359.63
  4. Step 4: Simplify right side
    80,763.63x = 3,072,326,782.39
  5. Step 5: Solve for x
    x = 3,072,326,782.39/80,763.63
  6. Step 6: Final answer
    x = 38,040.97

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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.