Home / 78,788.90-108,752.94-48,583.70

Finding the Fourth Proportional to 78,788.90, 108,752.94 and 48,583.70

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Solution

The fourth proportional to 78,788.90, 108,752.94 and 48,583.70 is: 67,060.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,788.90 : 108,752.94 = 48,583.70 : x
  2. Step 2: Convert to fraction form
    78,788.90/108,752.94 = 48,583.70/x
  3. Step 3: Cross multiply
    78,788.90x = 108,752.94 × 48,583.70
  4. Step 4: Simplify right side
    78,788.90x = 5,283,620,211.08
  5. Step 5: Solve for x
    x = 5,283,620,211.08/78,788.90
  6. Step 6: Final answer
    x = 67,060.46

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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.