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Finding the Fourth Proportional to 87,504.96, 120,502.71 and 76,014.60

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Solution

The fourth proportional to 87,504.96, 120,502.71 and 76,014.60 is: 104,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,504.96 : 120,502.71 = 76,014.60 : x
  2. Step 2: Convert to fraction form
    87,504.96/120,502.71 = 76,014.60/x
  3. Step 3: Cross multiply
    87,504.96x = 120,502.71 × 76,014.60
  4. Step 4: Simplify right side
    87,504.96x = 9,159,965,299.57
  5. Step 5: Solve for x
    x = 9,159,965,299.57/87,504.96
  6. Step 6: Final answer
    x = 104,679.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.