Home / 47,860.80-65,979.60-31,939.44

Finding the Fourth Proportional to 47,860.80, 65,979.60 and 31,939.44

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Solution

The fourth proportional to 47,860.80, 65,979.60 and 31,939.44 is: 44,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,860.80 : 65,979.60 = 31,939.44 : x
  2. Step 2: Convert to fraction form
    47,860.80/65,979.60 = 31,939.44/x
  3. Step 3: Cross multiply
    47,860.80x = 65,979.60 × 31,939.44
  4. Step 4: Simplify right side
    47,860.80x = 2,107,351,475.42
  5. Step 5: Solve for x
    x = 2,107,351,475.42/47,860.80
  6. Step 6: Final answer
    x = 44,030.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.