Home / 55,710.93-76,876.52-30,560.43

Finding the Fourth Proportional to 55,710.93, 76,876.52 and 30,560.43

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Solution

The fourth proportional to 55,710.93, 76,876.52 and 30,560.43 is: 42,170.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,710.93 : 76,876.52 = 30,560.43 : x
  2. Step 2: Convert to fraction form
    55,710.93/76,876.52 = 30,560.43/x
  3. Step 3: Cross multiply
    55,710.93x = 76,876.52 × 30,560.43
  4. Step 4: Simplify right side
    55,710.93x = 2,349,379,355.30
  5. Step 5: Solve for x
    x = 2,349,379,355.30/55,710.93
  6. Step 6: Final answer
    x = 42,170.89

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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.