Home / 84,031.20-115,961.76-46,306.80

Finding the Fourth Proportional to 84,031.20, 115,961.76 and 46,306.80

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Solution

The fourth proportional to 84,031.20, 115,961.76 and 46,306.80 is: 63,902.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,031.20 : 115,961.76 = 46,306.80 : x
  2. Step 2: Convert to fraction form
    84,031.20/115,961.76 = 46,306.80/x
  3. Step 3: Cross multiply
    84,031.20x = 115,961.76 × 46,306.80
  4. Step 4: Simplify right side
    84,031.20x = 5,369,818,027.97
  5. Step 5: Solve for x
    x = 5,369,818,027.97/84,031.20
  6. Step 6: Final answer
    x = 63,902.67

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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.