Home / 72,590.08-100,178.72-40,761.12

Finding the Fourth Proportional to 72,590.08, 100,178.72 and 40,761.12

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Solution

The fourth proportional to 72,590.08, 100,178.72 and 40,761.12 is: 56,252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,590.08 : 100,178.72 = 40,761.12 : x
  2. Step 2: Convert to fraction form
    72,590.08/100,178.72 = 40,761.12/x
  3. Step 3: Cross multiply
    72,590.08x = 100,178.72 × 40,761.12
  4. Step 4: Simplify right side
    72,590.08x = 4,083,396,827.37
  5. Step 5: Solve for x
    x = 4,083,396,827.37/72,590.08
  6. Step 6: Final answer
    x = 56,252.82

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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.