Home / 83,857.20-115,721.14-48,068.32

Finding the Fourth Proportional to 83,857.20, 115,721.14 and 48,068.32

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Solution

The fourth proportional to 83,857.20, 115,721.14 and 48,068.32 is: 66,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,857.20 : 115,721.14 = 48,068.32 : x
  2. Step 2: Convert to fraction form
    83,857.20/115,721.14 = 48,068.32/x
  3. Step 3: Cross multiply
    83,857.20x = 115,721.14 × 48,068.32
  4. Step 4: Simplify right side
    83,857.20x = 5,562,520,788.28
  5. Step 5: Solve for x
    x = 5,562,520,788.28/83,857.20
  6. Step 6: Final answer
    x = 66,333.25

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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.