Home / 87,210.45-120,355.74-48,982.50

Finding the Fourth Proportional to 87,210.45, 120,355.74 and 48,982.50

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Solution

The fourth proportional to 87,210.45, 120,355.74 and 48,982.50 is: 67,598.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,210.45 : 120,355.74 = 48,982.50 : x
  2. Step 2: Convert to fraction form
    87,210.45/120,355.74 = 48,982.50/x
  3. Step 3: Cross multiply
    87,210.45x = 120,355.74 × 48,982.50
  4. Step 4: Simplify right side
    87,210.45x = 5,895,325,034.55
  5. Step 5: Solve for x
    x = 5,895,325,034.55/87,210.45
  6. Step 6: Final answer
    x = 67,598.84

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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.