Home / 72,930.33-100,649.12-40,667.13

Finding the Fourth Proportional to 72,930.33, 100,649.12 and 40,667.13

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Solution

The fourth proportional to 72,930.33, 100,649.12 and 40,667.13 is: 56,123.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,930.33 : 100,649.12 = 40,667.13 : x
  2. Step 2: Convert to fraction form
    72,930.33/100,649.12 = 40,667.13/x
  3. Step 3: Cross multiply
    72,930.33x = 100,649.12 × 40,667.13
  4. Step 4: Simplify right side
    72,930.33x = 4,093,110,644.09
  5. Step 5: Solve for x
    x = 4,093,110,644.09/72,930.33
  6. Step 6: Final answer
    x = 56,123.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.