Home / 55,385.78-76,432.36-30,235.28

Finding the Fourth Proportional to 55,385.78, 76,432.36 and 30,235.28

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Solution

The fourth proportional to 55,385.78, 76,432.36 and 30,235.28 is: 41,724.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,385.78 : 76,432.36 = 30,235.28 : x
  2. Step 2: Convert to fraction form
    55,385.78/76,432.36 = 30,235.28/x
  3. Step 3: Cross multiply
    55,385.78x = 76,432.36 × 30,235.28
  4. Step 4: Simplify right side
    55,385.78x = 2,310,953,805.66
  5. Step 5: Solve for x
    x = 2,310,953,805.66/55,385.78
  6. Step 6: Final answer
    x = 41,724.68

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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.