Home / 72,539.47-100,102.22-40,273.39

Finding the Fourth Proportional to 72,539.47, 100,102.22 and 40,273.39

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Solution

The fourth proportional to 72,539.47, 100,102.22 and 40,273.39 is: 55,576.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,539.47 : 100,102.22 = 40,273.39 : x
  2. Step 2: Convert to fraction form
    72,539.47/100,102.22 = 40,273.39/x
  3. Step 3: Cross multiply
    72,539.47x = 100,102.22 × 40,273.39
  4. Step 4: Simplify right side
    72,539.47x = 4,031,455,445.33
  5. Step 5: Solve for x
    x = 4,031,455,445.33/72,539.47
  6. Step 6: Final answer
    x = 55,576.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.