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Finding the Fourth Proportional to 74,502.53, 102,812.03 and 40,510.73

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Solution

The fourth proportional to 74,502.53, 102,812.03 and 40,510.73 is: 55,904.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,502.53 : 102,812.03 = 40,510.73 : x
  2. Step 2: Convert to fraction form
    74,502.53/102,812.03 = 40,510.73/x
  3. Step 3: Cross multiply
    74,502.53x = 102,812.03 × 40,510.73
  4. Step 4: Simplify right side
    74,502.53x = 4,164,990,822.35
  5. Step 5: Solve for x
    x = 4,164,990,822.35/74,502.53
  6. Step 6: Final answer
    x = 55,904.02

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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.