Home / 56,891.62-78,505.77-31,740.58

Finding the Fourth Proportional to 56,891.62, 78,505.77 and 31,740.58

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Solution

The fourth proportional to 56,891.62, 78,505.77 and 31,740.58 is: 43,799.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,891.62 : 78,505.77 = 31,740.58 : x
  2. Step 2: Convert to fraction form
    56,891.62/78,505.77 = 31,740.58/x
  3. Step 3: Cross multiply
    56,891.62x = 78,505.77 × 31,740.58
  4. Step 4: Simplify right side
    56,891.62x = 2,491,818,673.15
  5. Step 5: Solve for x
    x = 2,491,818,673.15/56,891.62
  6. Step 6: Final answer
    x = 43,799.40

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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.