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Finding the Fourth Proportional to 69,811.39, 96,336.91 and 37,980.42

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Solution

The fourth proportional to 69,811.39, 96,336.91 and 37,980.42 is: 52,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,811.39 : 96,336.91 = 37,980.42 : x
  2. Step 2: Convert to fraction form
    69,811.39/96,336.91 = 37,980.42/x
  3. Step 3: Cross multiply
    69,811.39x = 96,336.91 × 37,980.42
  4. Step 4: Simplify right side
    69,811.39x = 3,658,916,303.30
  5. Step 5: Solve for x
    x = 3,658,916,303.30/69,811.39
  6. Step 6: Final answer
    x = 52,411.45

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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.