Home / 81,145.87-111,967.58-45,336.17

Finding the Fourth Proportional to 81,145.87, 111,967.58 and 45,336.17

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Solution

The fourth proportional to 81,145.87, 111,967.58 and 45,336.17 is: 62,556.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,145.87 : 111,967.58 = 45,336.17 : x
  2. Step 2: Convert to fraction form
    81,145.87/111,967.58 = 45,336.17/x
  3. Step 3: Cross multiply
    81,145.87x = 111,967.58 × 45,336.17
  4. Step 4: Simplify right side
    81,145.87x = 5,076,181,634.63
  5. Step 5: Solve for x
    x = 5,076,181,634.63/81,145.87
  6. Step 6: Final answer
    x = 62,556.26

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1.5x scale

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.