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Finding the Fourth Proportional to 51,484.80, 71,036.79 and 29,961.51

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Solution

The fourth proportional to 51,484.80, 71,036.79 and 29,961.51 is: 41,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,484.80 : 71,036.79 = 29,961.51 : x
  2. Step 2: Convert to fraction form
    51,484.80/71,036.79 = 29,961.51/x
  3. Step 3: Cross multiply
    51,484.80x = 71,036.79 × 29,961.51
  4. Step 4: Simplify right side
    51,484.80x = 2,128,369,493.95
  5. Step 5: Solve for x
    x = 2,128,369,493.95/51,484.80
  6. Step 6: Final answer
    x = 41,339.76

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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.