Home / 40,900.09-61,351.50-11,315.45

Finding the Fourth Proportional to 40,900.09, 61,351.50 and 11,315.45

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Solution

The fourth proportional to 40,900.09, 61,351.50 and 11,315.45 is: 16,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,900.09 : 61,351.50 = 11,315.45 : x
  2. Step 2: Convert to fraction form
    40,900.09/61,351.50 = 11,315.45/x
  3. Step 3: Cross multiply
    40,900.09x = 61,351.50 × 11,315.45
  4. Step 4: Simplify right side
    40,900.09x = 694,219,481.48
  5. Step 5: Solve for x
    x = 694,219,481.48/40,900.09
  6. Step 6: Final answer
    x = 16,973.55

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1.5x scale

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.