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Finding the Fourth Proportional to 74,373.46, 102,635.37 and 40,381.79

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Solution

The fourth proportional to 74,373.46, 102,635.37 and 40,381.79 is: 55,726.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,373.46 : 102,635.37 = 40,381.79 : x
  2. Step 2: Convert to fraction form
    74,373.46/102,635.37 = 40,381.79/x
  3. Step 3: Cross multiply
    74,373.46x = 102,635.37 × 40,381.79
  4. Step 4: Simplify right side
    74,373.46x = 4,144,599,444.74
  5. Step 5: Solve for x
    x = 4,144,599,444.74/74,373.46
  6. Step 6: Final answer
    x = 55,726.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.