Home / 56,489.31-77,955.21-30,995.82

Finding the Fourth Proportional to 56,489.31, 77,955.21 and 30,995.82

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Solution

The fourth proportional to 56,489.31, 77,955.21 and 30,995.82 is: 42,774.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,489.31 : 77,955.21 = 30,995.82 : x
  2. Step 2: Convert to fraction form
    56,489.31/77,955.21 = 30,995.82/x
  3. Step 3: Cross multiply
    56,489.31x = 77,955.21 × 30,995.82
  4. Step 4: Simplify right side
    56,489.31x = 2,416,285,657.22
  5. Step 5: Solve for x
    x = 2,416,285,657.22/56,489.31
  6. Step 6: Final answer
    x = 42,774.21

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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.