Home / 72,842.09-109,232.55-30,741.12

Finding the Fourth Proportional to 72,842.09, 109,232.55 and 30,741.12

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Solution

The fourth proportional to 72,842.09, 109,232.55 and 30,741.12 is: 46,098.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,842.09 : 109,232.55 = 30,741.12 : x
  2. Step 2: Convert to fraction form
    72,842.09/109,232.55 = 30,741.12/x
  3. Step 3: Cross multiply
    72,842.09x = 109,232.55 × 30,741.12
  4. Step 4: Simplify right side
    72,842.09x = 3,357,930,927.46
  5. Step 5: Solve for x
    x = 3,357,930,927.46/72,842.09
  6. Step 6: Final answer
    x = 46,098.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.