Home / 81,392.23-112,323.27-45,589.52

Finding the Fourth Proportional to 81,392.23, 112,323.27 and 45,589.52

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Solution

The fourth proportional to 81,392.23, 112,323.27 and 45,589.52 is: 62,914.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,392.23 : 112,323.27 = 45,589.52 : x
  2. Step 2: Convert to fraction form
    81,392.23/112,323.27 = 45,589.52/x
  3. Step 3: Cross multiply
    81,392.23x = 112,323.27 × 45,589.52
  4. Step 4: Simplify right side
    81,392.23x = 5,120,763,964.13
  5. Step 5: Solve for x
    x = 5,120,763,964.13/81,392.23
  6. Step 6: Final answer
    x = 62,914.65

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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.