Home / 51,820.40-77,633.40-48,321.20

Finding the Fourth Proportional to 51,820.40, 77,633.40 and 48,321.20

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Solution

The fourth proportional to 51,820.40, 77,633.40 and 48,321.20 is: 72,391.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,820.40 : 77,633.40 = 48,321.20 : x
  2. Step 2: Convert to fraction form
    51,820.40/77,633.40 = 48,321.20/x
  3. Step 3: Cross multiply
    51,820.40x = 77,633.40 × 48,321.20
  4. Step 4: Simplify right side
    51,820.40x = 3,751,339,048.08
  5. Step 5: Solve for x
    x = 3,751,339,048.08/51,820.40
  6. Step 6: Final answer
    x = 72,391.16

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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.