Home / 84,134.21-116,117.78-53,953.61

Finding the Fourth Proportional to 84,134.21, 116,117.78 and 53,953.61

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Solution

The fourth proportional to 84,134.21, 116,117.78 and 53,953.61 is: 74,464.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,134.21 : 116,117.78 = 53,953.61 : x
  2. Step 2: Convert to fraction form
    84,134.21/116,117.78 = 53,953.61/x
  3. Step 3: Cross multiply
    84,134.21x = 116,117.78 × 53,953.61
  4. Step 4: Simplify right side
    84,134.21x = 6,264,973,416.19
  5. Step 5: Solve for x
    x = 6,264,973,416.19/84,134.21
  6. Step 6: Final answer
    x = 74,464.04

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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.