Home / 81,741.40-112,752.32-56,203.44

Finding the Fourth Proportional to 81,741.40, 112,752.32 and 56,203.44

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Solution

The fourth proportional to 81,741.40, 112,752.32 and 56,203.44 is: 77,525.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,741.40 : 112,752.32 = 56,203.44 : x
  2. Step 2: Convert to fraction form
    81,741.40/112,752.32 = 56,203.44/x
  3. Step 3: Cross multiply
    81,741.40x = 112,752.32 × 56,203.44
  4. Step 4: Simplify right side
    81,741.40x = 6,337,068,251.98
  5. Step 5: Solve for x
    x = 6,337,068,251.98/81,741.40
  6. Step 6: Final answer
    x = 77,525.81

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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.