Home / 72,827.88-100,501-40,996.08

Finding the Fourth Proportional to 72,827.88, 100,501 and 40,996.08

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Solution

The fourth proportional to 72,827.88, 100,501 and 40,996.08 is: 56,573.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,827.88 : 100,501 = 40,996.08 : x
  2. Step 2: Convert to fraction form
    72,827.88/100,501 = 40,996.08/x
  3. Step 3: Cross multiply
    72,827.88x = 100,501 × 40,996.08
  4. Step 4: Simplify right side
    72,827.88x = 4,120,147,036.08
  5. Step 5: Solve for x
    x = 4,120,147,036.08/72,827.88
  6. Step 6: Final answer
    x = 56,573.76

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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.