Home / 55,128.96-82,688.92-17,678.92

Finding the Fourth Proportional to 55,128.96, 82,688.92 and 17,678.92

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Solution

The fourth proportional to 55,128.96, 82,688.92 and 17,678.92 is: 26,516.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,128.96 : 82,688.92 = 17,678.92 : x
  2. Step 2: Convert to fraction form
    55,128.96/82,688.92 = 17,678.92/x
  3. Step 3: Cross multiply
    55,128.96x = 82,688.92 × 17,678.92
  4. Step 4: Simplify right side
    55,128.96x = 1,461,850,801.57
  5. Step 5: Solve for x
    x = 1,461,850,801.57/55,128.96
  6. Step 6: Final answer
    x = 26,516.93

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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.