Home / 72,141.12-108,064.68-34,586.70

Finding the Fourth Proportional to 72,141.12, 108,064.68 and 34,586.70

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Solution

The fourth proportional to 72,141.12, 108,064.68 and 34,586.70 is: 51,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,141.12 : 108,064.68 = 34,586.70 : x
  2. Step 2: Convert to fraction form
    72,141.12/108,064.68 = 34,586.70/x
  3. Step 3: Cross multiply
    72,141.12x = 108,064.68 × 34,586.70
  4. Step 4: Simplify right side
    72,141.12x = 3,737,600,667.76
  5. Step 5: Solve for x
    x = 3,737,600,667.76/72,141.12
  6. Step 6: Final answer
    x = 51,809.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.