Home / 52,076.88-78,021.36-43,808.40

Finding the Fourth Proportional to 52,076.88, 78,021.36 and 43,808.40

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Solution

The fourth proportional to 52,076.88, 78,021.36 and 43,808.40 is: 65,633.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,076.88 : 78,021.36 = 43,808.40 : x
  2. Step 2: Convert to fraction form
    52,076.88/78,021.36 = 43,808.40/x
  3. Step 3: Cross multiply
    52,076.88x = 78,021.36 × 43,808.40
  4. Step 4: Simplify right side
    52,076.88x = 3,417,990,947.42
  5. Step 5: Solve for x
    x = 3,417,990,947.42/52,076.88
  6. Step 6: Final answer
    x = 65,633.56

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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.