Home / 81,282.69-112,187.67-49,461.84

Finding the Fourth Proportional to 81,282.69, 112,187.67 and 49,461.84

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Solution

The fourth proportional to 81,282.69, 112,187.67 and 49,461.84 is: 68,268.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,282.69 : 112,187.67 = 49,461.84 : x
  2. Step 2: Convert to fraction form
    81,282.69/112,187.67 = 49,461.84/x
  3. Step 3: Cross multiply
    81,282.69x = 112,187.67 × 49,461.84
  4. Step 4: Simplify right side
    81,282.69x = 5,549,008,583.51
  5. Step 5: Solve for x
    x = 5,549,008,583.51/81,282.69
  6. Step 6: Final answer
    x = 68,268.02

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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.