Home / 81,314.77-122,042.22-56,372.34

Finding the Fourth Proportional to 81,314.77, 122,042.22 and 56,372.34

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Solution

The fourth proportional to 81,314.77, 122,042.22 and 56,372.34 is: 84,607.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,314.77 : 122,042.22 = 56,372.34 : x
  2. Step 2: Convert to fraction form
    81,314.77/122,042.22 = 56,372.34/x
  3. Step 3: Cross multiply
    81,314.77x = 122,042.22 × 56,372.34
  4. Step 4: Simplify right side
    81,314.77x = 6,879,805,520.19
  5. Step 5: Solve for x
    x = 6,879,805,520.19/81,314.77
  6. Step 6: Final answer
    x = 84,607.08

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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.