Home / 72,581.13-100,160.48-40,750.02

Finding the Fourth Proportional to 72,581.13, 100,160.48 and 40,750.02

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Solution

The fourth proportional to 72,581.13, 100,160.48 and 40,750.02 is: 56,234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581.13 : 100,160.48 = 40,750.02 : x
  2. Step 2: Convert to fraction form
    72,581.13/100,160.48 = 40,750.02/x
  3. Step 3: Cross multiply
    72,581.13x = 100,160.48 × 40,750.02
  4. Step 4: Simplify right side
    72,581.13x = 4,081,541,359.46
  5. Step 5: Solve for x
    x = 4,081,541,359.46/72,581.13
  6. Step 6: Final answer
    x = 56,234.19

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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.