Home / 81,216.24-112,109.40-52,928.88

Finding the Fourth Proportional to 81,216.24, 112,109.40 and 52,928.88

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Solution

The fourth proportional to 81,216.24, 112,109.40 and 52,928.88 is: 73,062.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,216.24 : 112,109.40 = 52,928.88 : x
  2. Step 2: Convert to fraction form
    81,216.24/112,109.40 = 52,928.88/x
  3. Step 3: Cross multiply
    81,216.24x = 112,109.40 × 52,928.88
  4. Step 4: Simplify right side
    81,216.24x = 5,933,824,979.47
  5. Step 5: Solve for x
    x = 5,933,824,979.47/81,216.24
  6. Step 6: Final answer
    x = 73,062.05

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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.