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Finding the Fourth Proportional to 56,618.88, 84,772.48 and 42,725.76

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Solution

The fourth proportional to 56,618.88, 84,772.48 and 42,725.76 is: 63,971.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,618.88 : 84,772.48 = 42,725.76 : x
  2. Step 2: Convert to fraction form
    56,618.88/84,772.48 = 42,725.76/x
  3. Step 3: Cross multiply
    56,618.88x = 84,772.48 × 42,725.76
  4. Step 4: Simplify right side
    56,618.88x = 3,621,968,635.08
  5. Step 5: Solve for x
    x = 3,621,968,635.08/56,618.88
  6. Step 6: Final answer
    x = 63,971.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.