Home / 56,639.60-78,140.84-36,494.88

Finding the Fourth Proportional to 56,639.60, 78,140.84 and 36,494.88

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Solution

The fourth proportional to 56,639.60, 78,140.84 and 36,494.88 is: 50,348.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,639.60 : 78,140.84 = 36,494.88 : x
  2. Step 2: Convert to fraction form
    56,639.60/78,140.84 = 36,494.88/x
  3. Step 3: Cross multiply
    56,639.60x = 78,140.84 × 36,494.88
  4. Step 4: Simplify right side
    56,639.60x = 2,851,740,578.90
  5. Step 5: Solve for x
    x = 2,851,740,578.90/56,639.60
  6. Step 6: Final answer
    x = 50,348.88

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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.