Home / 90,472.32-135,516.96-57,175.36

Finding the Fourth Proportional to 90,472.32, 135,516.96 and 57,175.36

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Solution

The fourth proportional to 90,472.32, 135,516.96 and 57,175.36 is: 85,642.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,472.32 : 135,516.96 = 57,175.36 : x
  2. Step 2: Convert to fraction form
    90,472.32/135,516.96 = 57,175.36/x
  3. Step 3: Cross multiply
    90,472.32x = 135,516.96 × 57,175.36
  4. Step 4: Simplify right side
    90,472.32x = 7,748,230,974.11
  5. Step 5: Solve for x
    x = 7,748,230,974.11/90,472.32
  6. Step 6: Final answer
    x = 85,642.01

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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.