Home / 84,878.58-117,142.61-50,905.77

Finding the Fourth Proportional to 84,878.58, 117,142.61 and 50,905.77

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Solution

The fourth proportional to 84,878.58, 117,142.61 and 50,905.77 is: 70,256.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,878.58 : 117,142.61 = 50,905.77 : x
  2. Step 2: Convert to fraction form
    84,878.58/117,142.61 = 50,905.77/x
  3. Step 3: Cross multiply
    84,878.58x = 117,142.61 × 50,905.77
  4. Step 4: Simplify right side
    84,878.58x = 5,963,234,068.05
  5. Step 5: Solve for x
    x = 5,963,234,068.05/84,878.58
  6. Step 6: Final answer
    x = 70,256.05

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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.