Home / 81,805.08-112,891.20-45,995.40

Finding the Fourth Proportional to 81,805.08, 112,891.20 and 45,995.40

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Solution

The fourth proportional to 81,805.08, 112,891.20 and 45,995.40 is: 63,473.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,805.08 : 112,891.20 = 45,995.40 : x
  2. Step 2: Convert to fraction form
    81,805.08/112,891.20 = 45,995.40/x
  3. Step 3: Cross multiply
    81,805.08x = 112,891.20 × 45,995.40
  4. Step 4: Simplify right side
    81,805.08x = 5,192,475,900.48
  5. Step 5: Solve for x
    x = 5,192,475,900.48/81,805.08
  6. Step 6: Final answer
    x = 63,473.76

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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.