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Finding the Fourth Proportional to 51,495.39, 71,064.69 and 29,139.39

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Solution

The fourth proportional to 51,495.39, 71,064.69 and 29,139.39 is: 40,212.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,495.39 : 71,064.69 = 29,139.39 : x
  2. Step 2: Convert to fraction form
    51,495.39/71,064.69 = 29,139.39/x
  3. Step 3: Cross multiply
    51,495.39x = 71,064.69 × 29,139.39
  4. Step 4: Simplify right side
    51,495.39x = 2,070,781,717.14
  5. Step 5: Solve for x
    x = 2,070,781,717.14/51,495.39
  6. Step 6: Final answer
    x = 40,212.95

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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.