Home / 81,924.12-122,689.35-46,757.16

Finding the Fourth Proportional to 81,924.12, 122,689.35 and 46,757.16

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Solution

The fourth proportional to 81,924.12, 122,689.35 and 46,757.16 is: 70,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,924.12 : 122,689.35 = 46,757.16 : x
  2. Step 2: Convert to fraction form
    81,924.12/122,689.35 = 46,757.16/x
  3. Step 3: Cross multiply
    81,924.12x = 122,689.35 × 46,757.16
  4. Step 4: Simplify right side
    81,924.12x = 5,736,605,568.25
  5. Step 5: Solve for x
    x = 5,736,605,568.25/81,924.12
  6. Step 6: Final answer
    x = 70,023.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.