Home / 50,320.68-75,437.64-20,720.04

Finding the Fourth Proportional to 50,320.68, 75,437.64 and 20,720.04

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Solution

The fourth proportional to 50,320.68, 75,437.64 and 20,720.04 is: 31,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,320.68 : 75,437.64 = 20,720.04 : x
  2. Step 2: Convert to fraction form
    50,320.68/75,437.64 = 20,720.04/x
  3. Step 3: Cross multiply
    50,320.68x = 75,437.64 × 20,720.04
  4. Step 4: Simplify right side
    50,320.68x = 1,563,070,918.31
  5. Step 5: Solve for x
    x = 1,563,070,918.31/50,320.68
  6. Step 6: Final answer
    x = 31,062.20

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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.