Home / 52,491.20-78,544.80-38,667.20

Finding the Fourth Proportional to 52,491.20, 78,544.80 and 38,667.20

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Solution

The fourth proportional to 52,491.20, 78,544.80 and 38,667.20 is: 57,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,491.20 : 78,544.80 = 38,667.20 : x
  2. Step 2: Convert to fraction form
    52,491.20/78,544.80 = 38,667.20/x
  3. Step 3: Cross multiply
    52,491.20x = 78,544.80 × 38,667.20
  4. Step 4: Simplify right side
    52,491.20x = 3,037,107,490.56
  5. Step 5: Solve for x
    x = 3,037,107,490.56/52,491.20
  6. Step 6: Final answer
    x = 57,859.36

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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.