Home / 56,411.75-77,848.76-31,261.79

Finding the Fourth Proportional to 56,411.75, 77,848.76 and 31,261.79

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Solution

The fourth proportional to 56,411.75, 77,848.76 and 31,261.79 is: 43,141.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,411.75 : 77,848.76 = 31,261.79 : x
  2. Step 2: Convert to fraction form
    56,411.75/77,848.76 = 31,261.79/x
  3. Step 3: Cross multiply
    56,411.75x = 77,848.76 × 31,261.79
  4. Step 4: Simplify right side
    56,411.75x = 2,433,691,586.88
  5. Step 5: Solve for x
    x = 2,433,691,586.88/56,411.75
  6. Step 6: Final answer
    x = 43,141.57

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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.