Home / 84,384.03-126,536.95-31,062.54

Finding the Fourth Proportional to 84,384.03, 126,536.95 and 31,062.54

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Solution

The fourth proportional to 84,384.03, 126,536.95 and 31,062.54 is: 46,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,384.03 : 126,536.95 = 31,062.54 : x
  2. Step 2: Convert to fraction form
    84,384.03/126,536.95 = 31,062.54/x
  3. Step 3: Cross multiply
    84,384.03x = 126,536.95 × 31,062.54
  4. Step 4: Simplify right side
    84,384.03x = 3,930,559,070.85
  5. Step 5: Solve for x
    x = 3,930,559,070.85/84,384.03
  6. Step 6: Final answer
    x = 46,579.42

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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.