Home / 76,844.40-115,266.60-45,663.60

Finding the Fourth Proportional to 76,844.40, 115,266.60 and 45,663.60

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Solution

The fourth proportional to 76,844.40, 115,266.60 and 45,663.60 is: 68,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,844.40 : 115,266.60 = 45,663.60 : x
  2. Step 2: Convert to fraction form
    76,844.40/115,266.60 = 45,663.60/x
  3. Step 3: Cross multiply
    76,844.40x = 115,266.60 × 45,663.60
  4. Step 4: Simplify right side
    76,844.40x = 5,263,487,915.76
  5. Step 5: Solve for x
    x = 5,263,487,915.76/76,844.40
  6. Step 6: Final answer
    x = 68,495.40

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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.