Home / 72,942.17-100,562.70-54,715.41

Finding the Fourth Proportional to 72,942.17, 100,562.70 and 54,715.41

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Solution

The fourth proportional to 72,942.17, 100,562.70 and 54,715.41 is: 75,434.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,942.17 : 100,562.70 = 54,715.41 : x
  2. Step 2: Convert to fraction form
    72,942.17/100,562.70 = 54,715.41/x
  3. Step 3: Cross multiply
    72,942.17x = 100,562.70 × 54,715.41
  4. Step 4: Simplify right side
    72,942.17x = 5,502,329,361.21
  5. Step 5: Solve for x
    x = 5,502,329,361.21/72,942.17
  6. Step 6: Final answer
    x = 75,434.14

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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.