Home / 56,320.20-77,720.69-30,825.97

Finding the Fourth Proportional to 56,320.20, 77,720.69 and 30,825.97

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Solution

The fourth proportional to 56,320.20, 77,720.69 and 30,825.97 is: 42,539.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,320.20 : 77,720.69 = 30,825.97 : x
  2. Step 2: Convert to fraction form
    56,320.20/77,720.69 = 30,825.97/x
  3. Step 3: Cross multiply
    56,320.20x = 77,720.69 × 30,825.97
  4. Step 4: Simplify right side
    56,320.20x = 2,395,815,541.08
  5. Step 5: Solve for x
    x = 2,395,815,541.08/56,320.20
  6. Step 6: Final answer
    x = 42,539.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.