Home / 52,257.79-78,379.39-21,085.75

Finding the Fourth Proportional to 52,257.79, 78,379.39 and 21,085.75

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Solution

The fourth proportional to 52,257.79, 78,379.39 and 21,085.75 is: 31,625.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,257.79 : 78,379.39 = 21,085.75 : x
  2. Step 2: Convert to fraction form
    52,257.79/78,379.39 = 21,085.75/x
  3. Step 3: Cross multiply
    52,257.79x = 78,379.39 × 21,085.75
  4. Step 4: Simplify right side
    52,257.79x = 1,652,688,222.69
  5. Step 5: Solve for x
    x = 1,652,688,222.69/52,257.79
  6. Step 6: Final answer
    x = 31,625.68

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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.