Home / 112,989.31-169,484.97-28,749.55

Finding the Fourth Proportional to 112,989.31, 169,484.97 and 28,749.55

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Solution

The fourth proportional to 112,989.31, 169,484.97 and 28,749.55 is: 43,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,989.31 : 169,484.97 = 28,749.55 : x
  2. Step 2: Convert to fraction form
    112,989.31/169,484.97 = 28,749.55/x
  3. Step 3: Cross multiply
    112,989.31x = 169,484.97 × 28,749.55
  4. Step 4: Simplify right side
    112,989.31x = 4,872,616,619.26
  5. Step 5: Solve for x
    x = 4,872,616,619.26/112,989.31
  6. Step 6: Final answer
    x = 43,124.58

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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.