Home / 47,999.46-72,031.32-19,919.54

Finding the Fourth Proportional to 47,999.46, 72,031.32 and 19,919.54

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Solution

The fourth proportional to 47,999.46, 72,031.32 and 19,919.54 is: 29,892.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,999.46 : 72,031.32 = 19,919.54 : x
  2. Step 2: Convert to fraction form
    47,999.46/72,031.32 = 19,919.54/x
  3. Step 3: Cross multiply
    47,999.46x = 72,031.32 × 19,919.54
  4. Step 4: Simplify right side
    47,999.46x = 1,434,830,399.84
  5. Step 5: Solve for x
    x = 1,434,830,399.84/47,999.46
  6. Step 6: Final answer
    x = 29,892.64

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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.