Home / 42,730.53-64,076.30-17,755.66

Finding the Fourth Proportional to 42,730.53, 64,076.30 and 17,755.66

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Solution

The fourth proportional to 42,730.53, 64,076.30 and 17,755.66 is: 26,625.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,730.53 : 64,076.30 = 17,755.66 : x
  2. Step 2: Convert to fraction form
    42,730.53/64,076.30 = 17,755.66/x
  3. Step 3: Cross multiply
    42,730.53x = 64,076.30 × 17,755.66
  4. Step 4: Simplify right side
    42,730.53x = 1,137,716,996.86
  5. Step 5: Solve for x
    x = 1,137,716,996.86/42,730.53
  6. Step 6: Final answer
    x = 26,625.39

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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.