Home / 99,017.79-136,653.18-54,314.43

Finding the Fourth Proportional to 99,017.79, 136,653.18 and 54,314.43

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Solution

The fourth proportional to 99,017.79, 136,653.18 and 54,314.43 is: 74,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,017.79 : 136,653.18 = 54,314.43 : x
  2. Step 2: Convert to fraction form
    99,017.79/136,653.18 = 54,314.43/x
  3. Step 3: Cross multiply
    99,017.79x = 136,653.18 × 54,314.43
  4. Step 4: Simplify right side
    99,017.79x = 7,422,239,579.39
  5. Step 5: Solve for x
    x = 7,422,239,579.39/99,017.79
  6. Step 6: Final answer
    x = 74,958.65

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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.