Home / 72,582.14-100,160.78-40,752.38

Finding the Fourth Proportional to 72,582.14, 100,160.78 and 40,752.38

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Solution

The fourth proportional to 72,582.14, 100,160.78 and 40,752.38 is: 56,236.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,582.14 : 100,160.78 = 40,752.38 : x
  2. Step 2: Convert to fraction form
    72,582.14/100,160.78 = 40,752.38/x
  3. Step 3: Cross multiply
    72,582.14x = 100,160.78 × 40,752.38
  4. Step 4: Simplify right side
    72,582.14x = 4,081,790,214.30
  5. Step 5: Solve for x
    x = 4,081,790,214.30/72,582.14
  6. Step 6: Final answer
    x = 56,236.84

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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.