Home / 56,495.78-77,963.96-31,002.58

Finding the Fourth Proportional to 56,495.78, 77,963.96 and 31,002.58

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Solution

The fourth proportional to 56,495.78, 77,963.96 and 31,002.58 is: 42,783.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,495.78 : 77,963.96 = 31,002.58 : x
  2. Step 2: Convert to fraction form
    56,495.78/77,963.96 = 31,002.58/x
  3. Step 3: Cross multiply
    56,495.78x = 77,963.96 × 31,002.58
  4. Step 4: Simplify right side
    56,495.78x = 2,417,083,517.20
  5. Step 5: Solve for x
    x = 2,417,083,517.20/56,495.78
  6. Step 6: Final answer
    x = 42,783.43

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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.