Home / 51,738.72-71,398.80-29,381.28

Finding the Fourth Proportional to 51,738.72, 71,398.80 and 29,381.28

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Solution

The fourth proportional to 51,738.72, 71,398.80 and 29,381.28 is: 40,545.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,738.72 : 71,398.80 = 29,381.28 : x
  2. Step 2: Convert to fraction form
    51,738.72/71,398.80 = 29,381.28/x
  3. Step 3: Cross multiply
    51,738.72x = 71,398.80 × 29,381.28
  4. Step 4: Simplify right side
    51,738.72x = 2,097,788,134.46
  5. Step 5: Solve for x
    x = 2,097,788,134.46/51,738.72
  6. Step 6: Final answer
    x = 40,545.81

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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.