Home / 68,433.12-94,447.08-38,220.30

Finding the Fourth Proportional to 68,433.12, 94,447.08 and 38,220.30

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Solution

The fourth proportional to 68,433.12, 94,447.08 and 38,220.30 is: 52,749.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,433.12 : 94,447.08 = 38,220.30 : x
  2. Step 2: Convert to fraction form
    68,433.12/94,447.08 = 38,220.30/x
  3. Step 3: Cross multiply
    68,433.12x = 94,447.08 × 38,220.30
  4. Step 4: Simplify right side
    68,433.12x = 3,609,795,731.72
  5. Step 5: Solve for x
    x = 3,609,795,731.72/68,433.12
  6. Step 6: Final answer
    x = 52,749.25

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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.