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Finding the Fourth Proportional to 61,160.82, 91,751.48 and 19,031.00

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Solution

The fourth proportional to 61,160.82, 91,751.48 and 19,031.00 is: 28,549.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,160.82 : 91,751.48 = 19,031.00 : x
  2. Step 2: Convert to fraction form
    61,160.82/91,751.48 = 19,031.00/x
  3. Step 3: Cross multiply
    61,160.82x = 91,751.48 × 19,031.00
  4. Step 4: Simplify right side
    61,160.82x = 1,746,122,556.49
  5. Step 5: Solve for x
    x = 1,746,122,556.49/61,160.82
  6. Step 6: Final answer
    x = 28,549.69

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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.