Home / 55,080-76,010.40-29,929.50

Finding the Fourth Proportional to 55,080, 76,010.40 and 29,929.50

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Solution

The fourth proportional to 55,080, 76,010.40 and 29,929.50 is: 41,302.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,080 : 76,010.40 = 29,929.50 : x
  2. Step 2: Convert to fraction form
    55,080/76,010.40 = 29,929.50/x
  3. Step 3: Cross multiply
    55,080x = 76,010.40 × 29,929.50
  4. Step 4: Simplify right side
    55,080x = 2,274,953,266.80
  5. Step 5: Solve for x
    x = 2,274,953,266.80/55,080
  6. Step 6: Final answer
    x = 41,302.71

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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.