Home / 72,590.04-100,171.67-40,760.28

Finding the Fourth Proportional to 72,590.04, 100,171.67 and 40,760.28

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Solution

The fourth proportional to 72,590.04, 100,171.67 and 40,760.28 is: 56,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,590.04 : 100,171.67 = 40,760.28 : x
  2. Step 2: Convert to fraction form
    72,590.04/100,171.67 = 40,760.28/x
  3. Step 3: Cross multiply
    72,590.04x = 100,171.67 × 40,760.28
  4. Step 4: Simplify right side
    72,590.04x = 4,083,025,113.47
  5. Step 5: Solve for x
    x = 4,083,025,113.47/72,590.04
  6. Step 6: Final answer
    x = 56,247.73

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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.