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Finding the Fourth Proportional to 76,104.76, 114,128.76 and 26,170.72

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Solution

The fourth proportional to 76,104.76, 114,128.76 and 26,170.72 is: 39,246.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,104.76 : 114,128.76 = 26,170.72 : x
  2. Step 2: Convert to fraction form
    76,104.76/114,128.76 = 26,170.72/x
  3. Step 3: Cross multiply
    76,104.76x = 114,128.76 × 26,170.72
  4. Step 4: Simplify right side
    76,104.76x = 2,986,831,821.91
  5. Step 5: Solve for x
    x = 2,986,831,821.91/76,104.76
  6. Step 6: Final answer
    x = 39,246.32

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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.