Home / 52,701.20-78,859.80-38,877.20

Finding the Fourth Proportional to 52,701.20, 78,859.80 and 38,877.20

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Solution

The fourth proportional to 52,701.20, 78,859.80 and 38,877.20 is: 58,174.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,701.20 : 78,859.80 = 38,877.20 : x
  2. Step 2: Convert to fraction form
    52,701.20/78,859.80 = 38,877.20/x
  3. Step 3: Cross multiply
    52,701.20x = 78,859.80 × 38,877.20
  4. Step 4: Simplify right side
    52,701.20x = 3,065,848,216.56
  5. Step 5: Solve for x
    x = 3,065,848,216.56/52,701.20
  6. Step 6: Final answer
    x = 58,174.16

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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.