Home / 87,408.58-120,520.67-59,826.55

Finding the Fourth Proportional to 87,408.58, 120,520.67 and 59,826.55

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Solution

The fourth proportional to 87,408.58, 120,520.67 and 59,826.55 is: 82,490.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,408.58 : 120,520.67 = 59,826.55 : x
  2. Step 2: Convert to fraction form
    87,408.58/120,520.67 = 59,826.55/x
  3. Step 3: Cross multiply
    87,408.58x = 120,520.67 × 59,826.55
  4. Step 4: Simplify right side
    87,408.58x = 7,210,335,889.79
  5. Step 5: Solve for x
    x = 7,210,335,889.79/87,408.58
  6. Step 6: Final answer
    x = 82,490.02

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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.