Home / 56,876.05-78,493.35-31,387.48

Finding the Fourth Proportional to 56,876.05, 78,493.35 and 31,387.48

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Solution

The fourth proportional to 56,876.05, 78,493.35 and 31,387.48 is: 43,317.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,876.05 : 78,493.35 = 31,387.48 : x
  2. Step 2: Convert to fraction form
    56,876.05/78,493.35 = 31,387.48/x
  3. Step 3: Cross multiply
    56,876.05x = 78,493.35 × 31,387.48
  4. Step 4: Simplify right side
    56,876.05x = 2,463,708,374.73
  5. Step 5: Solve for x
    x = 2,463,708,374.73/56,876.05
  6. Step 6: Final answer
    x = 43,317.15

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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.