Home / 81,175.91-112,071.20-50,987.07

Finding the Fourth Proportional to 81,175.91, 112,071.20 and 50,987.07

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Solution

The fourth proportional to 81,175.91, 112,071.20 and 50,987.07 is: 70,392.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,175.91 : 112,071.20 = 50,987.07 : x
  2. Step 2: Convert to fraction form
    81,175.91/112,071.20 = 50,987.07/x
  3. Step 3: Cross multiply
    81,175.91x = 112,071.20 × 50,987.07
  4. Step 4: Simplify right side
    81,175.91x = 5,714,181,864.45
  5. Step 5: Solve for x
    x = 5,714,181,864.45/81,175.91
  6. Step 6: Final answer
    x = 70,392.59

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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.