Home / 55,386.38-83,030.43-20,317.97

Finding the Fourth Proportional to 55,386.38, 83,030.43 and 20,317.97

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Solution

The fourth proportional to 55,386.38, 83,030.43 and 20,317.97 is: 30,458.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,386.38 : 83,030.43 = 20,317.97 : x
  2. Step 2: Convert to fraction form
    55,386.38/83,030.43 = 20,317.97/x
  3. Step 3: Cross multiply
    55,386.38x = 83,030.43 × 20,317.97
  4. Step 4: Simplify right side
    55,386.38x = 1,687,009,785.83
  5. Step 5: Solve for x
    x = 1,687,009,785.83/55,386.38
  6. Step 6: Final answer
    x = 30,458.93

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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.