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Finding the Fourth Proportional to 47,756.45, 65,876.45 and 29,820.32

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Solution

The fourth proportional to 47,756.45, 65,876.45 and 29,820.32 is: 41,134.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,756.45 : 65,876.45 = 29,820.32 : x
  2. Step 2: Convert to fraction form
    47,756.45/65,876.45 = 29,820.32/x
  3. Step 3: Cross multiply
    47,756.45x = 65,876.45 × 29,820.32
  4. Step 4: Simplify right side
    47,756.45x = 1,964,456,340.98
  5. Step 5: Solve for x
    x = 1,964,456,340.98/47,756.45
  6. Step 6: Final answer
    x = 41,134.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.