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Finding the Fourth Proportional to 60,840.98, 91,305.24 and 21,431.24

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Solution

The fourth proportional to 60,840.98, 91,305.24 and 21,431.24 is: 32,162.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,840.98 : 91,305.24 = 21,431.24 : x
  2. Step 2: Convert to fraction form
    60,840.98/91,305.24 = 21,431.24/x
  3. Step 3: Cross multiply
    60,840.98x = 91,305.24 × 21,431.24
  4. Step 4: Simplify right side
    60,840.98x = 1,956,784,511.70
  5. Step 5: Solve for x
    x = 1,956,784,511.70/60,840.98
  6. Step 6: Final answer
    x = 32,162.28

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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.