Home / 42,755.13-64,141.10-13,167.93

Finding the Fourth Proportional to 42,755.13, 64,141.10 and 13,167.93

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Solution

The fourth proportional to 42,755.13, 64,141.10 and 13,167.93 is: 19,754.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,755.13 : 64,141.10 = 13,167.93 : x
  2. Step 2: Convert to fraction form
    42,755.13/64,141.10 = 13,167.93/x
  3. Step 3: Cross multiply
    42,755.13x = 64,141.10 × 13,167.93
  4. Step 4: Simplify right side
    42,755.13x = 844,605,449.08
  5. Step 5: Solve for x
    x = 844,605,449.08/42,755.13
  6. Step 6: Final answer
    x = 19,754.48

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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.