Home / 72,380.22-99,886.67-40,548.43

Finding the Fourth Proportional to 72,380.22, 99,886.67 and 40,548.43

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Solution

The fourth proportional to 72,380.22, 99,886.67 and 40,548.43 is: 55,957.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,380.22 : 99,886.67 = 40,548.43 : x
  2. Step 2: Convert to fraction form
    72,380.22/99,886.67 = 40,548.43/x
  3. Step 3: Cross multiply
    72,380.22x = 99,886.67 × 40,548.43
  4. Step 4: Simplify right side
    72,380.22x = 4,050,247,646.43
  5. Step 5: Solve for x
    x = 4,050,247,646.43/72,380.22
  6. Step 6: Final answer
    x = 55,957.94

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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.