Home / 52,679.45-78,899.90-40,749.36

Finding the Fourth Proportional to 52,679.45, 78,899.90 and 40,749.36

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Solution

The fourth proportional to 52,679.45, 78,899.90 and 40,749.36 is: 61,031.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,679.45 : 78,899.90 = 40,749.36 : x
  2. Step 2: Convert to fraction form
    52,679.45/78,899.90 = 40,749.36/x
  3. Step 3: Cross multiply
    52,679.45x = 78,899.90 × 40,749.36
  4. Step 4: Simplify right side
    52,679.45x = 3,215,120,225.32
  5. Step 5: Solve for x
    x = 3,215,120,225.32/52,679.45
  6. Step 6: Final answer
    x = 61,031.78

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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.