Home / 51,486.12-71,061.93-31,349.66

Finding the Fourth Proportional to 51,486.12, 71,061.93 and 31,349.66

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Solution

The fourth proportional to 51,486.12, 71,061.93 and 31,349.66 is: 43,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,486.12 : 71,061.93 = 31,349.66 : x
  2. Step 2: Convert to fraction form
    51,486.12/71,061.93 = 31,349.66/x
  3. Step 3: Cross multiply
    51,486.12x = 71,061.93 × 31,349.66
  4. Step 4: Simplify right side
    51,486.12x = 2,227,766,989.13
  5. Step 5: Solve for x
    x = 2,227,766,989.13/51,486.12
  6. Step 6: Final answer
    x = 43,269.27

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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.