Home / 47,173.89-70,761.56-12,112.77

Finding the Fourth Proportional to 47,173.89, 70,761.56 and 12,112.77

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Solution

The fourth proportional to 47,173.89, 70,761.56 and 12,112.77 is: 18,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,173.89 : 70,761.56 = 12,112.77 : x
  2. Step 2: Convert to fraction form
    47,173.89/70,761.56 = 12,112.77/x
  3. Step 3: Cross multiply
    47,173.89x = 70,761.56 × 12,112.77
  4. Step 4: Simplify right side
    47,173.89x = 857,118,501.12
  5. Step 5: Solve for x
    x = 857,118,501.12/47,173.89
  6. Step 6: Final answer
    x = 18,169.34

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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.