Home / 76,941.80-115,412.70-55,946.60

Finding the Fourth Proportional to 76,941.80, 115,412.70 and 55,946.60

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Solution

The fourth proportional to 76,941.80, 115,412.70 and 55,946.60 is: 83,919.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,941.80 : 115,412.70 = 55,946.60 : x
  2. Step 2: Convert to fraction form
    76,941.80/115,412.70 = 55,946.60/x
  3. Step 3: Cross multiply
    76,941.80x = 115,412.70 × 55,946.60
  4. Step 4: Simplify right side
    76,941.80x = 6,456,948,161.82
  5. Step 5: Solve for x
    x = 6,456,948,161.82/76,941.80
  6. Step 6: Final answer
    x = 83,919.90

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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.