Home / 72,791.10-100,451.07-40,959.36

Finding the Fourth Proportional to 72,791.10, 100,451.07 and 40,959.36

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Solution

The fourth proportional to 72,791.10, 100,451.07 and 40,959.36 is: 56,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,791.10 : 100,451.07 = 40,959.36 : x
  2. Step 2: Convert to fraction form
    72,791.10/100,451.07 = 40,959.36/x
  3. Step 3: Cross multiply
    72,791.10x = 100,451.07 × 40,959.36
  4. Step 4: Simplify right side
    72,791.10x = 4,114,411,538.52
  5. Step 5: Solve for x
    x = 4,114,411,538.52/72,791.10
  6. Step 6: Final answer
    x = 56,523.55

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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.