Home / 69,956.08-104,962.80-51,331.12

Finding the Fourth Proportional to 69,956.08, 104,962.80 and 51,331.12

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Solution

The fourth proportional to 69,956.08, 104,962.80 and 51,331.12 is: 77,017.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,956.08 : 104,962.80 = 51,331.12 : x
  2. Step 2: Convert to fraction form
    69,956.08/104,962.80 = 51,331.12/x
  3. Step 3: Cross multiply
    69,956.08x = 104,962.80 × 51,331.12
  4. Step 4: Simplify right side
    69,956.08x = 5,387,858,082.34
  5. Step 5: Solve for x
    x = 5,387,858,082.34/69,956.08
  6. Step 6: Final answer
    x = 77,017.72

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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.