Home / 56,076.59-77,382.81-31,874.40

Finding the Fourth Proportional to 56,076.59, 77,382.81 and 31,874.40

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Solution

The fourth proportional to 56,076.59, 77,382.81 and 31,874.40 is: 43,985.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,076.59 : 77,382.81 = 31,874.40 : x
  2. Step 2: Convert to fraction form
    56,076.59/77,382.81 = 31,874.40/x
  3. Step 3: Cross multiply
    56,076.59x = 77,382.81 × 31,874.40
  4. Step 4: Simplify right side
    56,076.59x = 2,466,530,639.06
  5. Step 5: Solve for x
    x = 2,466,530,639.06/56,076.59
  6. Step 6: Final answer
    x = 43,985.03

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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.