Home / 81,887.07-122,832.12-25,726.13

Finding the Fourth Proportional to 81,887.07, 122,832.12 and 25,726.13

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Solution

The fourth proportional to 81,887.07, 122,832.12 and 25,726.13 is: 38,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,887.07 : 122,832.12 = 25,726.13 : x
  2. Step 2: Convert to fraction form
    81,887.07/122,832.12 = 25,726.13/x
  3. Step 3: Cross multiply
    81,887.07x = 122,832.12 × 25,726.13
  4. Step 4: Simplify right side
    81,887.07x = 3,159,994,473.14
  5. Step 5: Solve for x
    x = 3,159,994,473.14/81,887.07
  6. Step 6: Final answer
    x = 38,589.66

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1.5x scale

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.