Home / 56,464.62-77,921.56-31,315.74

Finding the Fourth Proportional to 56,464.62, 77,921.56 and 31,315.74

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Solution

The fourth proportional to 56,464.62, 77,921.56 and 31,315.74 is: 43,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,464.62 : 77,921.56 = 31,315.74 : x
  2. Step 2: Convert to fraction form
    56,464.62/77,921.56 = 31,315.74/x
  3. Step 3: Cross multiply
    56,464.62x = 77,921.56 × 31,315.74
  4. Step 4: Simplify right side
    56,464.62x = 2,440,171,313.35
  5. Step 5: Solve for x
    x = 2,440,171,313.35/56,464.62
  6. Step 6: Final answer
    x = 43,215.93

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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.