Home / 88,695.10-122,319.66-56,857.96

Finding the Fourth Proportional to 88,695.10, 122,319.66 and 56,857.96

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Solution

The fourth proportional to 88,695.10, 122,319.66 and 56,857.96 is: 78,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,695.10 : 122,319.66 = 56,857.96 : x
  2. Step 2: Convert to fraction form
    88,695.10/122,319.66 = 56,857.96/x
  3. Step 3: Cross multiply
    88,695.10x = 122,319.66 × 56,857.96
  4. Step 4: Simplify right side
    88,695.10x = 6,954,846,335.49
  5. Step 5: Solve for x
    x = 6,954,846,335.49/88,695.10
  6. Step 6: Final answer
    x = 78,412.97

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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.