Home / 102,791.35-141,865.10-57,472.01

Finding the Fourth Proportional to 102,791.35, 141,865.10 and 57,472.01

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Solution

The fourth proportional to 102,791.35, 141,865.10 and 57,472.01 is: 79,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,791.35 : 141,865.10 = 57,472.01 : x
  2. Step 2: Convert to fraction form
    102,791.35/141,865.10 = 57,472.01/x
  3. Step 3: Cross multiply
    102,791.35x = 141,865.10 × 57,472.01
  4. Step 4: Simplify right side
    102,791.35x = 8,153,271,636.04
  5. Step 5: Solve for x
    x = 8,153,271,636.04/102,791.35
  6. Step 6: Final answer
    x = 79,318.65

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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.