Home / 63,205.11-87,231.47-61,128.14

Finding the Fourth Proportional to 63,205.11, 87,231.47 and 61,128.14

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Solution

The fourth proportional to 63,205.11, 87,231.47 and 61,128.14 is: 84,364.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,205.11 : 87,231.47 = 61,128.14 : x
  2. Step 2: Convert to fraction form
    63,205.11/87,231.47 = 61,128.14/x
  3. Step 3: Cross multiply
    63,205.11x = 87,231.47 × 61,128.14
  4. Step 4: Simplify right side
    63,205.11x = 5,332,296,768.77
  5. Step 5: Solve for x
    x = 5,332,296,768.77/63,205.11
  6. Step 6: Final answer
    x = 84,364.96

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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.