Home / 76,740.16-115,112.40-21,336.16

Finding the Fourth Proportional to 76,740.16, 115,112.40 and 21,336.16

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Solution

The fourth proportional to 76,740.16, 115,112.40 and 21,336.16 is: 32,004.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,740.16 : 115,112.40 = 21,336.16 : x
  2. Step 2: Convert to fraction form
    76,740.16/115,112.40 = 21,336.16/x
  3. Step 3: Cross multiply
    76,740.16x = 115,112.40 × 21,336.16
  4. Step 4: Simplify right side
    76,740.16x = 2,456,056,584.38
  5. Step 5: Solve for x
    x = 2,456,056,584.38/76,740.16
  6. Step 6: Final answer
    x = 32,004.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.