Home / 56,272.88-77,653.32-30,774.28

Finding the Fourth Proportional to 56,272.88, 77,653.32 and 30,774.28

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Solution

The fourth proportional to 56,272.88, 77,653.32 and 30,774.28 is: 42,466.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,272.88 : 77,653.32 = 30,774.28 : x
  2. Step 2: Convert to fraction form
    56,272.88/77,653.32 = 30,774.28/x
  3. Step 3: Cross multiply
    56,272.88x = 77,653.32 × 30,774.28
  4. Step 4: Simplify right side
    56,272.88x = 2,389,725,012.61
  5. Step 5: Solve for x
    x = 2,389,725,012.61/56,272.88
  6. Step 6: Final answer
    x = 42,466.73

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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.