Home / 49,720.77-74,581.16-20,118.24

Finding the Fourth Proportional to 49,720.77, 74,581.16 and 20,118.24

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Solution

The fourth proportional to 49,720.77, 74,581.16 and 20,118.24 is: 30,177.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,720.77 : 74,581.16 = 20,118.24 : x
  2. Step 2: Convert to fraction form
    49,720.77/74,581.16 = 20,118.24/x
  3. Step 3: Cross multiply
    49,720.77x = 74,581.16 × 20,118.24
  4. Step 4: Simplify right side
    49,720.77x = 1,500,441,575.77
  5. Step 5: Solve for x
    x = 1,500,441,575.77/49,720.77
  6. Step 6: Final answer
    x = 30,177.36

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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.