Home / 51,705.88-71,349.10-29,039.72

Finding the Fourth Proportional to 51,705.88, 71,349.10 and 29,039.72

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Solution

The fourth proportional to 51,705.88, 71,349.10 and 29,039.72 is: 40,072.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,705.88 : 71,349.10 = 29,039.72 : x
  2. Step 2: Convert to fraction form
    51,705.88/71,349.10 = 29,039.72/x
  3. Step 3: Cross multiply
    51,705.88x = 71,349.10 × 29,039.72
  4. Step 4: Simplify right side
    51,705.88x = 2,071,957,886.25
  5. Step 5: Solve for x
    x = 2,071,957,886.25/51,705.88
  6. Step 6: Final answer
    x = 40,072.00

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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.