Home / 76,621.90-114,932.85-53,002.30

Finding the Fourth Proportional to 76,621.90, 114,932.85 and 53,002.30

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Solution

The fourth proportional to 76,621.90, 114,932.85 and 53,002.30 is: 79,503.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,621.90 : 114,932.85 = 53,002.30 : x
  2. Step 2: Convert to fraction form
    76,621.90/114,932.85 = 53,002.30/x
  3. Step 3: Cross multiply
    76,621.90x = 114,932.85 × 53,002.30
  4. Step 4: Simplify right side
    76,621.90x = 6,091,705,395.56
  5. Step 5: Solve for x
    x = 6,091,705,395.56/76,621.90
  6. Step 6: Final answer
    x = 79,503.45

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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.