Home / 84,031.98-115,962.64-45,791.86

Finding the Fourth Proportional to 84,031.98, 115,962.64 and 45,791.86

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Solution

The fourth proportional to 84,031.98, 115,962.64 and 45,791.86 is: 63,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,031.98 : 115,962.64 = 45,791.86 : x
  2. Step 2: Convert to fraction form
    84,031.98/115,962.64 = 45,791.86/x
  3. Step 3: Cross multiply
    84,031.98x = 115,962.64 × 45,791.86
  4. Step 4: Simplify right side
    84,031.98x = 5,310,144,976.11
  5. Step 5: Solve for x
    x = 5,310,144,976.11/84,031.98
  6. Step 6: Final answer
    x = 63,191.95

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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.