Home / 72,512.18-108,779.79-30,959.54

Finding the Fourth Proportional to 72,512.18, 108,779.79 and 30,959.54

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Solution

The fourth proportional to 72,512.18, 108,779.79 and 30,959.54 is: 46,444.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,512.18 : 108,779.79 = 30,959.54 : x
  2. Step 2: Convert to fraction form
    72,512.18/108,779.79 = 30,959.54/x
  3. Step 3: Cross multiply
    72,512.18x = 108,779.79 × 30,959.54
  4. Step 4: Simplify right side
    72,512.18x = 3,367,772,259.70
  5. Step 5: Solve for x
    x = 3,367,772,259.70/72,512.18
  6. Step 6: Final answer
    x = 46,444.23

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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.