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Finding the Fourth Proportional to 68,520.49, 94,558.98 and 38,307.49

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Solution

The fourth proportional to 68,520.49, 94,558.98 and 38,307.49 is: 52,864.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,520.49 : 94,558.98 = 38,307.49 : x
  2. Step 2: Convert to fraction form
    68,520.49/94,558.98 = 38,307.49/x
  3. Step 3: Cross multiply
    68,520.49x = 94,558.98 × 38,307.49
  4. Step 4: Simplify right side
    68,520.49x = 3,622,316,516.43
  5. Step 5: Solve for x
    x = 3,622,316,516.43/68,520.49
  6. Step 6: Final answer
    x = 52,864.72

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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.