Home / 81,210.24-112,101.12-52,922.88

Finding the Fourth Proportional to 81,210.24, 112,101.12 and 52,922.88

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Solution

The fourth proportional to 81,210.24, 112,101.12 and 52,922.88 is: 73,053.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,210.24 : 112,101.12 = 52,922.88 : x
  2. Step 2: Convert to fraction form
    81,210.24/112,101.12 = 52,922.88/x
  3. Step 3: Cross multiply
    81,210.24x = 112,101.12 × 52,922.88
  4. Step 4: Simplify right side
    81,210.24x = 5,932,714,121.63
  5. Step 5: Solve for x
    x = 5,932,714,121.63/81,210.24
  6. Step 6: Final answer
    x = 73,053.77

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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.