Home / 81,044.59-121,483.74-31,111.24

Finding the Fourth Proportional to 81,044.59, 121,483.74 and 31,111.24

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Solution

The fourth proportional to 81,044.59, 121,483.74 and 31,111.24 is: 46,634.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,044.59 : 121,483.74 = 31,111.24 : x
  2. Step 2: Convert to fraction form
    81,044.59/121,483.74 = 31,111.24/x
  3. Step 3: Cross multiply
    81,044.59x = 121,483.74 × 31,111.24
  4. Step 4: Simplify right side
    81,044.59x = 3,779,509,791.24
  5. Step 5: Solve for x
    x = 3,779,509,791.24/81,044.59
  6. Step 6: Final answer
    x = 46,634.94

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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.