Home / 47,971.72-71,475.26-45,289

Finding the Fourth Proportional to 47,971.72, 71,475.26 and 45,289

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Solution

The fourth proportional to 47,971.72, 71,475.26 and 45,289 is: 67,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,971.72 : 71,475.26 = 45,289 : x
  2. Step 2: Convert to fraction form
    47,971.72/71,475.26 = 45,289/x
  3. Step 3: Cross multiply
    47,971.72x = 71,475.26 × 45,289
  4. Step 4: Simplify right side
    47,971.72x = 3,237,043,050.14
  5. Step 5: Solve for x
    x = 3,237,043,050.14/47,971.72
  6. Step 6: Final answer
    x = 67,478.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.