Home / 52,621.12-78,929.10-19,338.64

Finding the Fourth Proportional to 52,621.12, 78,929.10 and 19,338.64

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Solution

The fourth proportional to 52,621.12, 78,929.10 and 19,338.64 is: 29,007.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,621.12 : 78,929.10 = 19,338.64 : x
  2. Step 2: Convert to fraction form
    52,621.12/78,929.10 = 19,338.64/x
  3. Step 3: Cross multiply
    52,621.12x = 78,929.10 × 19,338.64
  4. Step 4: Simplify right side
    52,621.12x = 1,526,381,450.42
  5. Step 5: Solve for x
    x = 1,526,381,450.42/52,621.12
  6. Step 6: Final answer
    x = 29,007.01

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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.