Home / 74,287.49-111,449.25-42,717.74

Finding the Fourth Proportional to 74,287.49, 111,449.25 and 42,717.74

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Solution

The fourth proportional to 74,287.49, 111,449.25 and 42,717.74 is: 64,086.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,287.49 : 111,449.25 = 42,717.74 : x
  2. Step 2: Convert to fraction form
    74,287.49/111,449.25 = 42,717.74/x
  3. Step 3: Cross multiply
    74,287.49x = 111,449.25 × 42,717.74
  4. Step 4: Simplify right side
    74,287.49x = 4,760,859,527.45
  5. Step 5: Solve for x
    x = 4,760,859,527.45/74,287.49
  6. Step 6: Final answer
    x = 64,086.97

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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.