Home / 80,432.37-120,668.81-47,180.25

Finding the Fourth Proportional to 80,432.37, 120,668.81 and 47,180.25

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Solution

The fourth proportional to 80,432.37, 120,668.81 and 47,180.25 is: 70,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,432.37 : 120,668.81 = 47,180.25 : x
  2. Step 2: Convert to fraction form
    80,432.37/120,668.81 = 47,180.25/x
  3. Step 3: Cross multiply
    80,432.37x = 120,668.81 × 47,180.25
  4. Step 4: Simplify right side
    80,432.37x = 5,693,184,387.10
  5. Step 5: Solve for x
    x = 5,693,184,387.10/80,432.37
  6. Step 6: Final answer
    x = 70,782.25

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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.