Home / 74,999.40-112,628.70-40,007.40

Finding the Fourth Proportional to 74,999.40, 112,628.70 and 40,007.40

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Solution

The fourth proportional to 74,999.40, 112,628.70 and 40,007.40 is: 60,080.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,999.40 : 112,628.70 = 40,007.40 : x
  2. Step 2: Convert to fraction form
    74,999.40/112,628.70 = 40,007.40/x
  3. Step 3: Cross multiply
    74,999.40x = 112,628.70 × 40,007.40
  4. Step 4: Simplify right side
    74,999.40x = 4,505,981,452.38
  5. Step 5: Solve for x
    x = 4,505,981,452.38/74,999.40
  6. Step 6: Final answer
    x = 60,080.23

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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.