Home / 87,555.84-120,820.32-51,743.04

Finding the Fourth Proportional to 87,555.84, 120,820.32 and 51,743.04

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Solution

The fourth proportional to 87,555.84, 120,820.32 and 51,743.04 is: 71,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,555.84 : 120,820.32 = 51,743.04 : x
  2. Step 2: Convert to fraction form
    87,555.84/120,820.32 = 51,743.04/x
  3. Step 3: Cross multiply
    87,555.84x = 120,820.32 × 51,743.04
  4. Step 4: Simplify right side
    87,555.84x = 6,251,610,650.57
  5. Step 5: Solve for x
    x = 6,251,610,650.57/87,555.84
  6. Step 6: Final answer
    x = 71,401.41

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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.