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Finding the Fourth Proportional to 56,134.74, 84,141.84 and 27,999.21

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Solution

The fourth proportional to 56,134.74, 84,141.84 and 27,999.21 is: 41,968.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,134.74 : 84,141.84 = 27,999.21 : x
  2. Step 2: Convert to fraction form
    56,134.74/84,141.84 = 27,999.21/x
  3. Step 3: Cross multiply
    56,134.74x = 84,141.84 × 27,999.21
  4. Step 4: Simplify right side
    56,134.74x = 2,355,905,047.95
  5. Step 5: Solve for x
    x = 2,355,905,047.95/56,134.74
  6. Step 6: Final answer
    x = 41,968.75

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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.