Home / 76,740.22-115,126.80-43,476.22

Finding the Fourth Proportional to 76,740.22, 115,126.80 and 43,476.22

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Solution

The fourth proportional to 76,740.22, 115,126.80 and 43,476.22 is: 65,223.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,740.22 : 115,126.80 = 43,476.22 : x
  2. Step 2: Convert to fraction form
    76,740.22/115,126.80 = 43,476.22/x
  3. Step 3: Cross multiply
    76,740.22x = 115,126.80 × 43,476.22
  4. Step 4: Simplify right side
    76,740.22x = 5,005,278,084.70
  5. Step 5: Solve for x
    x = 5,005,278,084.70/76,740.22
  6. Step 6: Final answer
    x = 65,223.66

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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.