Home / 82,017.81-112,446.39-80,523.14

Finding the Fourth Proportional to 82,017.81, 112,446.39 and 80,523.14

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Solution

The fourth proportional to 82,017.81, 112,446.39 and 80,523.14 is: 110,397.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,017.81 : 112,446.39 = 80,523.14 : x
  2. Step 2: Convert to fraction form
    82,017.81/112,446.39 = 80,523.14/x
  3. Step 3: Cross multiply
    82,017.81x = 112,446.39 × 80,523.14
  4. Step 4: Simplify right side
    82,017.81x = 9,054,535,842.23
  5. Step 5: Solve for x
    x = 9,054,535,842.23/82,017.81
  6. Step 6: Final answer
    x = 110,397.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.