Home / 87,056.94-120,117.54-55,214.22

Finding the Fourth Proportional to 87,056.94, 120,117.54 and 55,214.22

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Solution

The fourth proportional to 87,056.94, 120,117.54 and 55,214.22 is: 76,182.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,056.94 : 120,117.54 = 55,214.22 : x
  2. Step 2: Convert to fraction form
    87,056.94/120,117.54 = 55,214.22/x
  3. Step 3: Cross multiply
    87,056.94x = 120,117.54 × 55,214.22
  4. Step 4: Simplify right side
    87,056.94x = 6,632,196,279.42
  5. Step 5: Solve for x
    x = 6,632,196,279.42/87,056.94
  6. Step 6: Final answer
    x = 76,182.28

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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.