Home / 51,688.98-71,326.44-31,278.69

Finding the Fourth Proportional to 51,688.98, 71,326.44 and 31,278.69

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Solution

The fourth proportional to 51,688.98, 71,326.44 and 31,278.69 is: 43,161.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,688.98 : 71,326.44 = 31,278.69 : x
  2. Step 2: Convert to fraction form
    51,688.98/71,326.44 = 31,278.69/x
  3. Step 3: Cross multiply
    51,688.98x = 71,326.44 × 31,278.69
  4. Step 4: Simplify right side
    51,688.98x = 2,230,997,605.56
  5. Step 5: Solve for x
    x = 2,230,997,605.56/51,688.98
  6. Step 6: Final answer
    x = 43,161.96

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1.5x scale

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.