Home / 81,237.26-121,810.63-25,061.43

Finding the Fourth Proportional to 81,237.26, 121,810.63 and 25,061.43

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Solution

The fourth proportional to 81,237.26, 121,810.63 and 25,061.43 is: 37,578.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,237.26 : 121,810.63 = 25,061.43 : x
  2. Step 2: Convert to fraction form
    81,237.26/121,810.63 = 25,061.43/x
  3. Step 3: Cross multiply
    81,237.26x = 121,810.63 × 25,061.43
  4. Step 4: Simplify right side
    81,237.26x = 3,052,748,451.69
  5. Step 5: Solve for x
    x = 3,052,748,451.69/81,237.26
  6. Step 6: Final answer
    x = 37,578.18

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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.