Home / 85,080.58-117,285.32-54,450.28

Finding the Fourth Proportional to 85,080.58, 117,285.32 and 54,450.28

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Solution

The fourth proportional to 85,080.58, 117,285.32 and 54,450.28 is: 75,060.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,080.58 : 117,285.32 = 54,450.28 : x
  2. Step 2: Convert to fraction form
    85,080.58/117,285.32 = 54,450.28/x
  3. Step 3: Cross multiply
    85,080.58x = 117,285.32 × 54,450.28
  4. Step 4: Simplify right side
    85,080.58x = 6,386,217,830.61
  5. Step 5: Solve for x
    x = 6,386,217,830.61/85,080.58
  6. Step 6: Final answer
    x = 75,060.82

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1.5x scale

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.