Home / 56,819.68-78,411.70-31,326.95

Finding the Fourth Proportional to 56,819.68, 78,411.70 and 31,326.95

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Solution

The fourth proportional to 56,819.68, 78,411.70 and 31,326.95 is: 43,231.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,819.68 : 78,411.70 = 31,326.95 : x
  2. Step 2: Convert to fraction form
    56,819.68/78,411.70 = 31,326.95/x
  3. Step 3: Cross multiply
    56,819.68x = 78,411.70 × 31,326.95
  4. Step 4: Simplify right side
    56,819.68x = 2,456,399,464.29
  5. Step 5: Solve for x
    x = 2,456,399,464.29/56,819.68
  6. Step 6: Final answer
    x = 43,231.49

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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.