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Finding the Fourth Proportional to 56,264.33, 77,641.64 and 30,765.64

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Solution

The fourth proportional to 56,264.33, 77,641.64 and 30,765.64 is: 42,454.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,264.33 : 77,641.64 = 30,765.64 : x
  2. Step 2: Convert to fraction form
    56,264.33/77,641.64 = 30,765.64/x
  3. Step 3: Cross multiply
    56,264.33x = 77,641.64 × 30,765.64
  4. Step 4: Simplify right side
    56,264.33x = 2,388,694,203.21
  5. Step 5: Solve for x
    x = 2,388,694,203.21/56,264.33
  6. Step 6: Final answer
    x = 42,454.86

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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.