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Finding the Fourth Proportional to 53,007.78, 79,511.77 and 13,026.79

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Solution

The fourth proportional to 53,007.78, 79,511.77 and 13,026.79 is: 19,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,007.78 : 79,511.77 = 13,026.79 : x
  2. Step 2: Convert to fraction form
    53,007.78/79,511.77 = 13,026.79/x
  3. Step 3: Cross multiply
    53,007.78x = 79,511.77 × 13,026.79
  4. Step 4: Simplify right side
    53,007.78x = 1,035,782,732.76
  5. Step 5: Solve for x
    x = 1,035,782,732.76/53,007.78
  6. Step 6: Final answer
    x = 19,540.20

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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.