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Finding the Fourth Proportional to 76,136.64, 114,256.64 and 26,888.64

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Solution

The fourth proportional to 76,136.64, 114,256.64 and 26,888.64 is: 40,351.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,136.64 : 114,256.64 = 26,888.64 : x
  2. Step 2: Convert to fraction form
    76,136.64/114,256.64 = 26,888.64/x
  3. Step 3: Cross multiply
    76,136.64x = 114,256.64 × 26,888.64
  4. Step 4: Simplify right side
    76,136.64x = 3,072,205,660.57
  5. Step 5: Solve for x
    x = 3,072,205,660.57/76,136.64
  6. Step 6: Final answer
    x = 40,351.21

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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.