Home / 90,965.77-136,442.26-34,028.81

Finding the Fourth Proportional to 90,965.77, 136,442.26 and 34,028.81

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Solution

The fourth proportional to 90,965.77, 136,442.26 and 34,028.81 is: 51,040.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,965.77 : 136,442.26 = 34,028.81 : x
  2. Step 2: Convert to fraction form
    90,965.77/136,442.26 = 34,028.81/x
  3. Step 3: Cross multiply
    90,965.77x = 136,442.26 × 34,028.81
  4. Step 4: Simplify right side
    90,965.77x = 4,642,967,422.08
  5. Step 5: Solve for x
    x = 4,642,967,422.08/90,965.77
  6. Step 6: Final answer
    x = 51,040.82

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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.