Home / 68,645.24-94,729.72-38,430.84

Finding the Fourth Proportional to 68,645.24, 94,729.72 and 38,430.84

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Solution

The fourth proportional to 68,645.24, 94,729.72 and 38,430.84 is: 53,034.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,645.24 : 94,729.72 = 38,430.84 : x
  2. Step 2: Convert to fraction form
    68,645.24/94,729.72 = 38,430.84/x
  3. Step 3: Cross multiply
    68,645.24x = 94,729.72 × 38,430.84
  4. Step 4: Simplify right side
    68,645.24x = 3,640,542,712.56
  5. Step 5: Solve for x
    x = 3,640,542,712.56/68,645.24
  6. Step 6: Final answer
    x = 53,034.16

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1.5x scale

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.