Home / 72,512.03-108,763.65-43,116.93

Finding the Fourth Proportional to 72,512.03, 108,763.65 and 43,116.93

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Solution

The fourth proportional to 72,512.03, 108,763.65 and 43,116.93 is: 64,672.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,512.03 : 108,763.65 = 43,116.93 : x
  2. Step 2: Convert to fraction form
    72,512.03/108,763.65 = 43,116.93/x
  3. Step 3: Cross multiply
    72,512.03x = 108,763.65 × 43,116.93
  4. Step 4: Simplify right side
    72,512.03x = 4,689,554,683.59
  5. Step 5: Solve for x
    x = 4,689,554,683.59/72,512.03
  6. Step 6: Final answer
    x = 64,672.78

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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.