Home / 80,887.04-121,346.13-36,513.80

Finding the Fourth Proportional to 80,887.04, 121,346.13 and 36,513.80

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Solution

The fourth proportional to 80,887.04, 121,346.13 and 36,513.80 is: 54,777.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,887.04 : 121,346.13 = 36,513.80 : x
  2. Step 2: Convert to fraction form
    80,887.04/121,346.13 = 36,513.80/x
  3. Step 3: Cross multiply
    80,887.04x = 121,346.13 × 36,513.80
  4. Step 4: Simplify right side
    80,887.04x = 4,430,808,321.59
  5. Step 5: Solve for x
    x = 4,430,808,321.59/80,887.04
  6. Step 6: Final answer
    x = 54,777.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.