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Finding the Fourth Proportional to 61,851.28, 85,354 and 33,556.76

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Solution

The fourth proportional to 61,851.28, 85,354 and 33,556.76 is: 46,307.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,851.28 : 85,354 = 33,556.76 : x
  2. Step 2: Convert to fraction form
    61,851.28/85,354 = 33,556.76/x
  3. Step 3: Cross multiply
    61,851.28x = 85,354 × 33,556.76
  4. Step 4: Simplify right side
    61,851.28x = 2,864,203,693.04
  5. Step 5: Solve for x
    x = 2,864,203,693.04/61,851.28
  6. Step 6: Final answer
    x = 46,307.91

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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.