Home / 80,776.04-111,355.43-56,828.39

Finding the Fourth Proportional to 80,776.04, 111,355.43 and 56,828.39

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Solution

The fourth proportional to 80,776.04, 111,355.43 and 56,828.39 is: 78,341.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,776.04 : 111,355.43 = 56,828.39 : x
  2. Step 2: Convert to fraction form
    80,776.04/111,355.43 = 56,828.39/x
  3. Step 3: Cross multiply
    80,776.04x = 111,355.43 × 56,828.39
  4. Step 4: Simplify right side
    80,776.04x = 6,328,148,963.74
  5. Step 5: Solve for x
    x = 6,328,148,963.74/80,776.04
  6. Step 6: Final answer
    x = 78,341.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.