Home / 72,299.09-108,467.33-42,338.63

Finding the Fourth Proportional to 72,299.09, 108,467.33 and 42,338.63

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Solution

The fourth proportional to 72,299.09, 108,467.33 and 42,338.63 is: 63,518.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,299.09 : 108,467.33 = 42,338.63 : x
  2. Step 2: Convert to fraction form
    72,299.09/108,467.33 = 42,338.63/x
  3. Step 3: Cross multiply
    72,299.09x = 108,467.33 × 42,338.63
  4. Step 4: Simplify right side
    72,299.09x = 4,592,358,151.96
  5. Step 5: Solve for x
    x = 4,592,358,151.96/72,299.09
  6. Step 6: Final answer
    x = 63,518.89

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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.