Home / 47,816.80-71,757.60-31,136.20

Finding the Fourth Proportional to 47,816.80, 71,757.60 and 31,136.20

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Solution

The fourth proportional to 47,816.80, 71,757.60 and 31,136.20 is: 46,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,816.80 : 71,757.60 = 31,136.20 : x
  2. Step 2: Convert to fraction form
    47,816.80/71,757.60 = 31,136.20/x
  3. Step 3: Cross multiply
    47,816.80x = 71,757.60 × 31,136.20
  4. Step 4: Simplify right side
    47,816.80x = 2,234,258,985.12
  5. Step 5: Solve for x
    x = 2,234,258,985.12/47,816.80
  6. Step 6: Final answer
    x = 46,725.40

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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.