Home / 53,928.60-80,940.90-31,714.20

Finding the Fourth Proportional to 53,928.60, 80,940.90 and 31,714.20

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Solution

The fourth proportional to 53,928.60, 80,940.90 and 31,714.20 is: 47,599.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,928.60 : 80,940.90 = 31,714.20 : x
  2. Step 2: Convert to fraction form
    53,928.60/80,940.90 = 31,714.20/x
  3. Step 3: Cross multiply
    53,928.60x = 80,940.90 × 31,714.20
  4. Step 4: Simplify right side
    53,928.60x = 2,566,975,890.78
  5. Step 5: Solve for x
    x = 2,566,975,890.78/53,928.60
  6. Step 6: Final answer
    x = 47,599.53

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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.