Home / 56,371.32-77,795.46-31,221

Finding the Fourth Proportional to 56,371.32, 77,795.46 and 31,221

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Solution

The fourth proportional to 56,371.32, 77,795.46 and 31,221 is: 43,086.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,371.32 : 77,795.46 = 31,221 : x
  2. Step 2: Convert to fraction form
    56,371.32/77,795.46 = 31,221/x
  3. Step 3: Cross multiply
    56,371.32x = 77,795.46 × 31,221
  4. Step 4: Simplify right side
    56,371.32x = 2,428,852,056.66
  5. Step 5: Solve for x
    x = 2,428,852,056.66/56,371.32
  6. Step 6: Final answer
    x = 43,086.66

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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.