Home / 47,999.81-72,000.09-31,464.54

Finding the Fourth Proportional to 47,999.81, 72,000.09 and 31,464.54

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Solution

The fourth proportional to 47,999.81, 72,000.09 and 31,464.54 is: 47,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,999.81 : 72,000.09 = 31,464.54 : x
  2. Step 2: Convert to fraction form
    47,999.81/72,000.09 = 31,464.54/x
  3. Step 3: Cross multiply
    47,999.81x = 72,000.09 × 31,464.54
  4. Step 4: Simplify right side
    47,999.81x = 2,265,449,711.81
  5. Step 5: Solve for x
    x = 2,265,449,711.81/47,999.81
  6. Step 6: Final answer
    x = 47,197.05

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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.