Home / 97,429.72-134,453.64-57,135.28

Finding the Fourth Proportional to 97,429.72, 134,453.64 and 57,135.28

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Solution

The fourth proportional to 97,429.72, 134,453.64 and 57,135.28 is: 78,847.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,429.72 : 134,453.64 = 57,135.28 : x
  2. Step 2: Convert to fraction form
    97,429.72/134,453.64 = 57,135.28/x
  3. Step 3: Cross multiply
    97,429.72x = 134,453.64 × 57,135.28
  4. Step 4: Simplify right side
    97,429.72x = 7,682,046,368.42
  5. Step 5: Solve for x
    x = 7,682,046,368.42/97,429.72
  6. Step 6: Final answer
    x = 78,847.05

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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.