Home / 72,007.09-108,010.64-19,416.57

Finding the Fourth Proportional to 72,007.09, 108,010.64 and 19,416.57

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Solution

The fourth proportional to 72,007.09, 108,010.64 and 19,416.57 is: 29,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,007.09 : 108,010.64 = 19,416.57 : x
  2. Step 2: Convert to fraction form
    72,007.09/108,010.64 = 19,416.57/x
  3. Step 3: Cross multiply
    72,007.09x = 108,010.64 × 19,416.57
  4. Step 4: Simplify right side
    72,007.09x = 2,097,196,152.30
  5. Step 5: Solve for x
    x = 2,097,196,152.30/72,007.09
  6. Step 6: Final answer
    x = 29,124.86

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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.