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Finding the Fourth Proportional to 69,864, 96,409.08 and 38,030.88

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Solution

The fourth proportional to 69,864, 96,409.08 and 38,030.88 is: 52,480.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,864 : 96,409.08 = 38,030.88 : x
  2. Step 2: Convert to fraction form
    69,864/96,409.08 = 38,030.88/x
  3. Step 3: Cross multiply
    69,864x = 96,409.08 × 38,030.88
  4. Step 4: Simplify right side
    69,864x = 3,666,522,152.39
  5. Step 5: Solve for x
    x = 3,666,522,152.39/69,864
  6. Step 6: Final answer
    x = 52,480.85

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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.