Home / 81,901.23-112,995.46-49,646.22

Finding the Fourth Proportional to 81,901.23, 112,995.46 and 49,646.22

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Solution

The fourth proportional to 81,901.23, 112,995.46 and 49,646.22 is: 68,494.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,901.23 : 112,995.46 = 49,646.22 : x
  2. Step 2: Convert to fraction form
    81,901.23/112,995.46 = 49,646.22/x
  3. Step 3: Cross multiply
    81,901.23x = 112,995.46 × 49,646.22
  4. Step 4: Simplify right side
    81,901.23x = 5,609,796,825.23
  5. Step 5: Solve for x
    x = 5,609,796,825.23/81,901.23
  6. Step 6: Final answer
    x = 68,494.66

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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.