Home / 56,688.25-78,229.79-31,537.75

Finding the Fourth Proportional to 56,688.25, 78,229.79 and 31,537.75

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Solution

The fourth proportional to 56,688.25, 78,229.79 and 31,537.75 is: 43,522.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,688.25 : 78,229.79 = 31,537.75 : x
  2. Step 2: Convert to fraction form
    56,688.25/78,229.79 = 31,537.75/x
  3. Step 3: Cross multiply
    56,688.25x = 78,229.79 × 31,537.75
  4. Step 4: Simplify right side
    56,688.25x = 2,467,191,559.57
  5. Step 5: Solve for x
    x = 2,467,191,559.57/56,688.25
  6. Step 6: Final answer
    x = 43,522.10

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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.