Home / 47,979.30-72,031.32-36,893.78

Finding the Fourth Proportional to 47,979.30, 72,031.32 and 36,893.78

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Solution

The fourth proportional to 47,979.30, 72,031.32 and 36,893.78 is: 55,388.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,979.30 : 72,031.32 = 36,893.78 : x
  2. Step 2: Convert to fraction form
    47,979.30/72,031.32 = 36,893.78/x
  3. Step 3: Cross multiply
    47,979.30x = 72,031.32 × 36,893.78
  4. Step 4: Simplify right side
    47,979.30x = 2,657,507,583.15
  5. Step 5: Solve for x
    x = 2,657,507,583.15/47,979.30
  6. Step 6: Final answer
    x = 55,388.62

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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.