Home / 56,658.48-78,190.63-31,166.75

Finding the Fourth Proportional to 56,658.48, 78,190.63 and 31,166.75

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Solution

The fourth proportional to 56,658.48, 78,190.63 and 31,166.75 is: 43,011.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,658.48 : 78,190.63 = 31,166.75 : x
  2. Step 2: Convert to fraction form
    56,658.48/78,190.63 = 31,166.75/x
  3. Step 3: Cross multiply
    56,658.48x = 78,190.63 × 31,166.75
  4. Step 4: Simplify right side
    56,658.48x = 2,436,947,348.68
  5. Step 5: Solve for x
    x = 2,436,947,348.68/56,658.48
  6. Step 6: Final answer
    x = 43,011.16

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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.