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Finding the Fourth Proportional to 74,161.79, 102,315.03 and 54,827.13

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Solution

The fourth proportional to 74,161.79, 102,315.03 and 54,827.13 is: 75,640.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,161.79 : 102,315.03 = 54,827.13 : x
  2. Step 2: Convert to fraction form
    74,161.79/102,315.03 = 54,827.13/x
  3. Step 3: Cross multiply
    74,161.79x = 102,315.03 × 54,827.13
  4. Step 4: Simplify right side
    74,161.79x = 5,609,639,450.76
  5. Step 5: Solve for x
    x = 5,609,639,450.76/74,161.79
  6. Step 6: Final answer
    x = 75,640.56

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1.5x scale

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.