Home / 72,509.36-108,759.65-43,114.28

Finding the Fourth Proportional to 72,509.36, 108,759.65 and 43,114.28

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Solution

The fourth proportional to 72,509.36, 108,759.65 and 43,114.28 is: 64,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,509.36 : 108,759.65 = 43,114.28 : x
  2. Step 2: Convert to fraction form
    72,509.36/108,759.65 = 43,114.28/x
  3. Step 3: Cross multiply
    72,509.36x = 108,759.65 × 43,114.28
  4. Step 4: Simplify right side
    72,509.36x = 4,689,093,243.43
  5. Step 5: Solve for x
    x = 4,689,093,243.43/72,509.36
  6. Step 6: Final answer
    x = 64,668.80

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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.