Home / 87,355.50-120,570.03-55,518.18

Finding the Fourth Proportional to 87,355.50, 120,570.03 and 55,518.18

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Solution

The fourth proportional to 87,355.50, 120,570.03 and 55,518.18 is: 76,627.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,355.50 : 120,570.03 = 55,518.18 : x
  2. Step 2: Convert to fraction form
    87,355.50/120,570.03 = 55,518.18/x
  3. Step 3: Cross multiply
    87,355.50x = 120,570.03 × 55,518.18
  4. Step 4: Simplify right side
    87,355.50x = 6,693,828,628.15
  5. Step 5: Solve for x
    x = 6,693,828,628.15/87,355.50
  6. Step 6: Final answer
    x = 76,627.44

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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.