Home / 84,650.40-126,886.07-31,308.10

Finding the Fourth Proportional to 84,650.40, 126,886.07 and 31,308.10

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Solution

The fourth proportional to 84,650.40, 126,886.07 and 31,308.10 is: 46,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,650.40 : 126,886.07 = 31,308.10 : x
  2. Step 2: Convert to fraction form
    84,650.40/126,886.07 = 31,308.10/x
  3. Step 3: Cross multiply
    84,650.40x = 126,886.07 × 31,308.10
  4. Step 4: Simplify right side
    84,650.40x = 3,972,561,529.22
  5. Step 5: Solve for x
    x = 3,972,561,529.22/84,650.40
  6. Step 6: Final answer
    x = 46,929.03

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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.