Home / 54,341.40-81,512.10-36,715.80

Finding the Fourth Proportional to 54,341.40, 81,512.10 and 36,715.80

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Solution

The fourth proportional to 54,341.40, 81,512.10 and 36,715.80 is: 55,073.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,341.40 : 81,512.10 = 36,715.80 : x
  2. Step 2: Convert to fraction form
    54,341.40/81,512.10 = 36,715.80/x
  3. Step 3: Cross multiply
    54,341.40x = 81,512.10 × 36,715.80
  4. Step 4: Simplify right side
    54,341.40x = 2,992,781,961.18
  5. Step 5: Solve for x
    x = 2,992,781,961.18/54,341.40
  6. Step 6: Final answer
    x = 55,073.70

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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.