Home / 48,720.12-73,087.80-20,640.24

Finding the Fourth Proportional to 48,720.12, 73,087.80 and 20,640.24

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Solution

The fourth proportional to 48,720.12, 73,087.80 and 20,640.24 is: 30,963.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,720.12 : 73,087.80 = 20,640.24 : x
  2. Step 2: Convert to fraction form
    48,720.12/73,087.80 = 20,640.24/x
  3. Step 3: Cross multiply
    48,720.12x = 73,087.80 × 20,640.24
  4. Step 4: Simplify right side
    48,720.12x = 1,508,549,733.07
  5. Step 5: Solve for x
    x = 1,508,549,733.07/48,720.12
  6. Step 6: Final answer
    x = 30,963.59

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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.