Home / 97,439.72-134,467.44-57,145.28

Finding the Fourth Proportional to 97,439.72, 134,467.44 and 57,145.28

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Solution

The fourth proportional to 97,439.72, 134,467.44 and 57,145.28 is: 78,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,439.72 : 134,467.44 = 57,145.28 : x
  2. Step 2: Convert to fraction form
    97,439.72/134,467.44 = 57,145.28/x
  3. Step 3: Cross multiply
    97,439.72x = 134,467.44 × 57,145.28
  4. Step 4: Simplify right side
    97,439.72x = 7,684,179,509.68
  5. Step 5: Solve for x
    x = 7,684,179,509.68/97,439.72
  6. Step 6: Final answer
    x = 78,860.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.