Home / 78,525.74-117,786.76-25,217.84

Finding the Fourth Proportional to 78,525.74, 117,786.76 and 25,217.84

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Solution

The fourth proportional to 78,525.74, 117,786.76 and 25,217.84 is: 37,826.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,525.74 : 117,786.76 = 25,217.84 : x
  2. Step 2: Convert to fraction form
    78,525.74/117,786.76 = 25,217.84/x
  3. Step 3: Cross multiply
    78,525.74x = 117,786.76 × 25,217.84
  4. Step 4: Simplify right side
    78,525.74x = 2,970,327,899.22
  5. Step 5: Solve for x
    x = 2,970,327,899.22/78,525.74
  6. Step 6: Final answer
    x = 37,826.17

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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.