Home / 84,145.04-116,111.64-49,684.40

Finding the Fourth Proportional to 84,145.04, 116,111.64 and 49,684.40

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Solution

The fourth proportional to 84,145.04, 116,111.64 and 49,684.40 is: 68,559.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,145.04 : 116,111.64 = 49,684.40 : x
  2. Step 2: Convert to fraction form
    84,145.04/116,111.64 = 49,684.40/x
  3. Step 3: Cross multiply
    84,145.04x = 116,111.64 × 49,684.40
  4. Step 4: Simplify right side
    84,145.04x = 5,768,937,166.42
  5. Step 5: Solve for x
    x = 5,768,937,166.42/84,145.04
  6. Step 6: Final answer
    x = 68,559.44

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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.