Home / 81,618.32-112,633.27-45,808.33

Finding the Fourth Proportional to 81,618.32, 112,633.27 and 45,808.33

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Solution

The fourth proportional to 81,618.32, 112,633.27 and 45,808.33 is: 63,215.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,618.32 : 112,633.27 = 45,808.33 : x
  2. Step 2: Convert to fraction form
    81,618.32/112,633.27 = 45,808.33/x
  3. Step 3: Cross multiply
    81,618.32x = 112,633.27 × 45,808.33
  4. Step 4: Simplify right side
    81,618.32x = 5,159,541,437.97
  5. Step 5: Solve for x
    x = 5,159,541,437.97/81,618.32
  6. Step 6: Final answer
    x = 63,215.49

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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.