Home / 53,478.30-80,217.45-48,812.70

Finding the Fourth Proportional to 53,478.30, 80,217.45 and 48,812.70

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Solution

The fourth proportional to 53,478.30, 80,217.45 and 48,812.70 is: 73,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,478.30 : 80,217.45 = 48,812.70 : x
  2. Step 2: Convert to fraction form
    53,478.30/80,217.45 = 48,812.70/x
  3. Step 3: Cross multiply
    53,478.30x = 80,217.45 × 48,812.70
  4. Step 4: Simplify right side
    53,478.30x = 3,915,630,321.62
  5. Step 5: Solve for x
    x = 3,915,630,321.62/53,478.30
  6. Step 6: Final answer
    x = 73,219.05

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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.