Home / 68,381.11-94,374.86-38,172.70

Finding the Fourth Proportional to 68,381.11, 94,374.86 and 38,172.70

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Solution

The fourth proportional to 68,381.11, 94,374.86 and 38,172.70 is: 52,683.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,381.11 : 94,374.86 = 38,172.70 : x
  2. Step 2: Convert to fraction form
    68,381.11/94,374.86 = 38,172.70/x
  3. Step 3: Cross multiply
    68,381.11x = 94,374.86 × 38,172.70
  4. Step 4: Simplify right side
    68,381.11x = 3,602,543,145.43
  5. Step 5: Solve for x
    x = 3,602,543,145.43/68,381.11
  6. Step 6: Final answer
    x = 52,683.31

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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.