Home / 68,431.80-94,436.34-38,217.48

Finding the Fourth Proportional to 68,431.80, 94,436.34 and 38,217.48

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Solution

The fourth proportional to 68,431.80, 94,436.34 and 38,217.48 is: 52,740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,431.80 : 94,436.34 = 38,217.48 : x
  2. Step 2: Convert to fraction form
    68,431.80/94,436.34 = 38,217.48/x
  3. Step 3: Cross multiply
    68,431.80x = 94,436.34 × 38,217.48
  4. Step 4: Simplify right side
    68,431.80x = 3,609,118,935.22
  5. Step 5: Solve for x
    x = 3,609,118,935.22/68,431.80
  6. Step 6: Final answer
    x = 52,740.38

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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.