Home / 80,200.11-110,543.29-56,285.27

Finding the Fourth Proportional to 80,200.11, 110,543.29 and 56,285.27

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Solution

The fourth proportional to 80,200.11, 110,543.29 and 56,285.27 is: 77,580.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,200.11 : 110,543.29 = 56,285.27 : x
  2. Step 2: Convert to fraction form
    80,200.11/110,543.29 = 56,285.27/x
  3. Step 3: Cross multiply
    80,200.11x = 110,543.29 × 56,285.27
  4. Step 4: Simplify right side
    80,200.11x = 6,221,958,924.34
  5. Step 5: Solve for x
    x = 6,221,958,924.34/80,200.11
  6. Step 6: Final answer
    x = 77,580.43

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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.