Home / 80,795.02-121,190.24-21,630.70

Finding the Fourth Proportional to 80,795.02, 121,190.24 and 21,630.70

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Solution

The fourth proportional to 80,795.02, 121,190.24 and 21,630.70 is: 32,445.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,795.02 : 121,190.24 = 21,630.70 : x
  2. Step 2: Convert to fraction form
    80,795.02/121,190.24 = 21,630.70/x
  3. Step 3: Cross multiply
    80,795.02x = 121,190.24 × 21,630.70
  4. Step 4: Simplify right side
    80,795.02x = 2,621,429,724.37
  5. Step 5: Solve for x
    x = 2,621,429,724.37/80,795.02
  6. Step 6: Final answer
    x = 32,445.44

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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.