Home / 53,804.28-80,673.62-20,488.76

Finding the Fourth Proportional to 53,804.28, 80,673.62 and 20,488.76

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Solution

The fourth proportional to 53,804.28, 80,673.62 and 20,488.76 is: 30,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,804.28 : 80,673.62 = 20,488.76 : x
  2. Step 2: Convert to fraction form
    53,804.28/80,673.62 = 20,488.76/x
  3. Step 3: Cross multiply
    53,804.28x = 80,673.62 × 20,488.76
  4. Step 4: Simplify right side
    53,804.28x = 1,652,902,438.51
  5. Step 5: Solve for x
    x = 1,652,902,438.51/53,804.28
  6. Step 6: Final answer
    x = 30,720.65

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1.5x scale

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.