Home / 87,294.78-120,503.43-76,797.18

Finding the Fourth Proportional to 87,294.78, 120,503.43 and 76,797.18

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Solution

The fourth proportional to 87,294.78, 120,503.43 and 76,797.18 is: 106,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,294.78 : 120,503.43 = 76,797.18 : x
  2. Step 2: Convert to fraction form
    87,294.78/120,503.43 = 76,797.18/x
  3. Step 3: Cross multiply
    87,294.78x = 120,503.43 × 76,797.18
  4. Step 4: Simplify right side
    87,294.78x = 9,254,323,604.33
  5. Step 5: Solve for x
    x = 9,254,323,604.33/87,294.78
  6. Step 6: Final answer
    x = 106,012.34

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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.