Home / 72,822.72-100,494.24-40,991.52

Finding the Fourth Proportional to 72,822.72, 100,494.24 and 40,991.52

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Solution

The fourth proportional to 72,822.72, 100,494.24 and 40,991.52 is: 56,567.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,822.72 : 100,494.24 = 40,991.52 : x
  2. Step 2: Convert to fraction form
    72,822.72/100,494.24 = 40,991.52/x
  3. Step 3: Cross multiply
    72,822.72x = 100,494.24 × 40,991.52
  4. Step 4: Simplify right side
    72,822.72x = 4,119,411,648.84
  5. Step 5: Solve for x
    x = 4,119,411,648.84/72,822.72
  6. Step 6: Final answer
    x = 56,567.67

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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.