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Finding the Fourth Proportional to 69,541.58, 104,311.28 and 27,987.50

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Solution

The fourth proportional to 69,541.58, 104,311.28 and 27,987.50 is: 41,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,541.58 : 104,311.28 = 27,987.50 : x
  2. Step 2: Convert to fraction form
    69,541.58/104,311.28 = 27,987.50/x
  3. Step 3: Cross multiply
    69,541.58x = 104,311.28 × 27,987.50
  4. Step 4: Simplify right side
    69,541.58x = 2,919,411,949
  5. Step 5: Solve for x
    x = 2,919,411,949/69,541.58
  6. Step 6: Final answer
    x = 41,980.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.