Home / 42,721.83-64,090.85-17,748.32

Finding the Fourth Proportional to 42,721.83, 64,090.85 and 17,748.32

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Solution

The fourth proportional to 42,721.83, 64,090.85 and 17,748.32 is: 26,625.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,721.83 : 64,090.85 = 17,748.32 : x
  2. Step 2: Convert to fraction form
    42,721.83/64,090.85 = 17,748.32/x
  3. Step 3: Cross multiply
    42,721.83x = 64,090.85 × 17,748.32
  4. Step 4: Simplify right side
    42,721.83x = 1,137,504,505.68
  5. Step 5: Solve for x
    x = 1,137,504,505.68/42,721.83
  6. Step 6: Final answer
    x = 26,625.84

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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.