Home / 81,029.13-121,460.63-31,095.83

Finding the Fourth Proportional to 81,029.13, 121,460.63 and 31,095.83

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Solution

The fourth proportional to 81,029.13, 121,460.63 and 31,095.83 is: 46,611.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,029.13 : 121,460.63 = 31,095.83 : x
  2. Step 2: Convert to fraction form
    81,029.13/121,460.63 = 31,095.83/x
  3. Step 3: Cross multiply
    81,029.13x = 121,460.63 × 31,095.83
  4. Step 4: Simplify right side
    81,029.13x = 3,776,918,339.39
  5. Step 5: Solve for x
    x = 3,776,918,339.39/81,029.13
  6. Step 6: Final answer
    x = 46,611.86

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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.