Home / 81,395.20-112,320.03-45,577

Finding the Fourth Proportional to 81,395.20, 112,320.03 and 45,577

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Solution

The fourth proportional to 81,395.20, 112,320.03 and 45,577 is: 62,893.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,395.20 : 112,320.03 = 45,577 : x
  2. Step 2: Convert to fraction form
    81,395.20/112,320.03 = 45,577/x
  3. Step 3: Cross multiply
    81,395.20x = 112,320.03 × 45,577
  4. Step 4: Simplify right side
    81,395.20x = 5,119,210,007.31
  5. Step 5: Solve for x
    x = 5,119,210,007.31/81,395.20
  6. Step 6: Final answer
    x = 62,893.27

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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.