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Finding the Fourth Proportional to 69,680.55, 96,245.77 and 68,630.79

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Solution

The fourth proportional to 69,680.55, 96,245.77 and 68,630.79 is: 94,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,680.55 : 96,245.77 = 68,630.79 : x
  2. Step 2: Convert to fraction form
    69,680.55/96,245.77 = 68,630.79/x
  3. Step 3: Cross multiply
    69,680.55x = 96,245.77 × 68,630.79
  4. Step 4: Simplify right side
    69,680.55x = 6,605,423,547.29
  5. Step 5: Solve for x
    x = 6,605,423,547.29/69,680.55
  6. Step 6: Final answer
    x = 94,795.80

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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.