Home / 72,725.36-100,360.33-40,894.49

Finding the Fourth Proportional to 72,725.36, 100,360.33 and 40,894.49

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Solution

The fourth proportional to 72,725.36, 100,360.33 and 40,894.49 is: 56,434.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,725.36 : 100,360.33 = 40,894.49 : x
  2. Step 2: Convert to fraction form
    72,725.36/100,360.33 = 40,894.49/x
  3. Step 3: Cross multiply
    72,725.36x = 100,360.33 × 40,894.49
  4. Step 4: Simplify right side
    72,725.36x = 4,104,184,325.75
  5. Step 5: Solve for x
    x = 4,104,184,325.75/72,725.36
  6. Step 6: Final answer
    x = 56,434.02

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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.