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Finding the Fourth Proportional to 73,378.71, 101,257.79 and 40,670.96

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Solution

The fourth proportional to 73,378.71, 101,257.79 and 40,670.96 is: 56,123.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,378.71 : 101,257.79 = 40,670.96 : x
  2. Step 2: Convert to fraction form
    73,378.71/101,257.79 = 40,670.96/x
  3. Step 3: Cross multiply
    73,378.71x = 101,257.79 × 40,670.96
  4. Step 4: Simplify right side
    73,378.71x = 4,118,250,817.13
  5. Step 5: Solve for x
    x = 4,118,250,817.13/73,378.71
  6. Step 6: Final answer
    x = 56,123.24

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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.